By Glen Johnson, Globe Staff

Elizabeth Warren, trying to ride her reputation as a Wall Street enforcer to the US Senate, today released a new radio ad calling for enhanced government regulation in the aftermath of JPMorgan Chase’s $2 billion trading loss. “I stood up to big banks. I took on their army of lobbyists and help win the fight for a consumer protection agency,” the Democrat says in the new spot. “Wall Street isn’t going to change its ways until Washington gets serious.”

By Michael Levenson and Noah Bierman, Globe Staff

Elizabeth Warren’s allies in the Massachusetts Democratic Party today called on US Senator Scott Brown to disclose any fund-raising ties he may have to JPMorgan Chase, the Wall Street bank that is under fire for a $2-billion trading loss. In a conference call with reporters, the party chairman, John Walsh, said Brown must reveal who sits on his “New York City Finance Committee,” an entity that hosted an evening reception for Brown on March 12.

By Noah Bierman, Globe Staff

Senate candidate Elizabeth Warren today called on JPMorgan Chase chief executive officer Jamie Dimon to resign from New York Federal Reserve Bank board after his company’s $2 billion trading loss. Three top traders at the firm are being replaced today. Warren spoke with CNN and CBS about the latest Wall Street crisis, calling it a symptom of a destructive attitude. She said that banks should get back in the business of old fashioned banking, rather than the complex business transactions.

By Noah Bierman, Globe Staff

A second law school, the University of Pennsylvania, has touted Elizabeth Warren as a minority faculty member in an official school publication, according to an online document obtained by the Globe. Meanwhile, a newly unearthed University of Texas personnel document shows that Warren listed herself as “white” when she taught at the law school there from 1981 to 1991.

By Noah Bierman, Globe Staff

US Senator Scott Brown, an opponent of gay marriage when he was in the Massachusetts Legislature, said in a statement today that gay marriage is “settled law” in Massachusetts and should be decided by the states instead of the federal government. Brown’s leading Democratic opponent, Elizabeth Warren, has been courting the gay and lesbian community by advocating aggressively in favor of gay marriage. In March, Warren told the Washington Blade, a gay newspaper, that President Obama should complete what he had previously characterized as an “evolving” opinion on the subject.

By Glen Johnson, Globe Staff

The Massachusetts Democratic Party today filed a complaint with the Senate Ethics Committee, arguing that Senator Scott Brown abused public resources by using video shot by a government employee to promote his reelection campaign. The Globe reported last week that the video - of Brown sinking a half-court basketball shot - was recorded by his Senate communications director, during an official event, and after that employee had flown to Massachusetts on an airline ticket bought by the taxpayers.

By Glen Johnson, Globe Staff

Senator Scott Brown today is starting to air the first television ad of his reelection campaign, and it focuses on a theme he pounded across the state last week: his political independence. In the 30-second spot, which will air in the Boston, Springfield, Providence, R.I., and Albany, N.Y., markets, features clips from his 2010 victory speech, a “60 Minutes” report about him, and Brown addressing students about his life. “We have more work to do,” Brown says

By Noah Bierman, Globe Staff

Matt Damon, Ben Affleck, and the guy from The Office are teaming up to hold a Santa Monica fundraiser for Elizabeth Warren’s US Senate bid. Warren’s popularity among Hollywood celebrities has been well-documented. In this case, the celebrity hosts are home-grown. Damon and Affleck are famous for their ties to Cambridge, where Warren lives. And John Krasinski of The Office is from Newton.

By Noah Bierman, Globe Staff

Republican US Senator Scott Brown and his leading Democratic challenger, Elizabeth Warren, are tied in a new poll timed to gauge the impact of a controversy over Warren’s Native American heritage. The automated poll of 500 likely voters was taken Monday night by Rasmussen reports and shows both candidates at 45 percent. The same polling firm had similar results last month, with Brown leading 46 percent to 45 percent, with a margin of error of plus or minus 4.5 percent.

By Noah Bierman, Globe Staff

Republican US Senator Scott Brown has reeled in an endorsement from the second Maine senator -- Susan Collins. The Maine Republican, who frequently works with Brown as part of an informal caucus of New England Republicans, plans to formally endorse Brown Friday morning at his South Boston campaign headquarters.

By Stephanie Ebbert, Globe Staff

US Senate candidate Elizabeth Warren said on Wednesday that she listed herself as a minority in directories of law professors in the hopes of networking with other “people like me” -- meaning those with Native American roots. Asked whether she considers herself to be a minority, the Democrat said, “Native American is part of my family. It’s an important part of my heritage.” But she said she was recruited for her teaching jobs based on her performance, not on her minority status.

By Glen Johnson, Globe Staff

Senator Scott Brown said today that “it’s sad” for rival Elizabeth Warren to criticize his decision to continue insuring one of his daughters through the Obama administration health care law that he has opposed and tried to repeal. “For her to call me a hypocrite as to how Gail and I provide for our family, it’s sad,” Brown said. Warren, Brown’s likely Democratic challenger this fall, never personally applied that label to the senator. But her campaign spokeswoman did Monday.

By Glen Johnson, Globe Staff

Senator Scott Brown is planning to deliver a speech this afternoon on bipartisanship that is titled, “Americans First,” but he previewed his thoughts earlier this week during remarks to a pro-business trade group. Speaking Monday to The New England Council, the Massachusetts Republican not only differentiated himself from the Democrats comprising the rest of the state’s congressional delegation, but many of his colleagues in Congress and his likely reelection opponent this fall, Democrat Elizabeth Warren.

By Glen Johnson, Globe Staff

Democratic Senate candidate Elizabeth Warren is using the words of President Obama to make the case that she can get action in Washington. In a new television ad set to start airing statewide tonight, the president is seen in the Rose Garden lauding Warren’s work to establish the Consumer Financial Protection Bureau. “She came up with an idea for a new, independent agency that would have one simple, overriding mission: standing up for consumers and middle-class families,” Obama says.

By Glen Johnson, Globe Staff

Democrat Elizabeth Warren said today “it is wrong” that Senator Scott Brown has voted to block and repeal President Obama’s health care overhaul when he continues to insure his nearly 24-year-old daughter through an extended-coverage provision in the law. “He is using that same health care reform act to make sure that his adult daughter gets covered on his health insurance policy – at the same moment that he wants to repeal it for everyone else,” Warren said.

By Noah Bierman, Globe Staff

A group of influential minority legal associations passed a resolution last year calling on law schools to require “sufficient documentation of Native American citizenship” to prevent “academic ethnic fraud” from law school applicants. The issue has become a heated topic in the Massachusetts Senate race, as Republicans have questioned why Harvard Law School at one time promoted Elizabeth Warren’s Native American ancestry in the Harvard Crimson newspaper when it was under fire for a lack of diversity in its faculty.