The Note's Must-Reads are a round-up of today's political headlines and stories from ABC News and the top U.S. newspapers. Posted Monday through Friday right here at www.abcnews.com

Compiled by ABC News' Jayce Henderson, Amanda VanAllen, Carrie Halperin and JP Lawrence

IRS SCANDAL ABC News' Shushannah Walshe: " 25 Tea Party Groups File Suit Against the IRS" At least the third tea party-affiliated organization alleging unfair scrutiny by the Internal Revenue Service has filed a federal lawsuit on behalf of tea party and conservative groups against the IRS, U.S. Attorney General Eric Holder, Treasury Secretary Jack Lew and various IRS officials. One of the 25 conservative groups in the suit filed today is the Waco Tea Party, run by president Toby Marie Walker, who told ABC News she's "a little nervous" of retaliation, but knows it's the right move. LINK

ABC News' Abby D. Phillp: " Republicans Hope IRS Scandal Taints Democrats, 'Obamacare'" Conservative groups are preparing to use the deepening public distrust of the Internal Revenue Service to discredit the Affordable Care Act, and the Democrats who support it, in the 2014 election cycle. Now that the IRS has admitted to unfairly targeting conservative groupsseeking tax-exempt status, Republicans plan to make the agency, which is responsible for carrying out much of President Obama's health care law, the poster child for dysfunctional government, and a giant liability for Democrats. LINK

The New York Times' Michael Schmidt: " Former Bush Official Said to Be Obama Pick to Lead F.B.I." President Obama plans to nominate James B. Comey, a former hedge fund executive who served as a senior Justice Department official under President George W. Bush, to replace Robert S. Mueller III as the director of the Federal Bureau of Investigation, according to two people with knowledge of the selection. By choosing Mr. Comey, a Republican, Mr. Obama made a strong statement about bipartisanship at a time when he faces renewed criticism from Republicans in Congress and has had difficulty winning confirmation of some important nominees. LINK

FBI DIRECTOR NOMINATION The Washington Times' Jessica Chasmar: " Obama to nominate James Comey to replace Robert Mueller as FBI director" President Obama is planning to nominate James Comey to replace Robert Mueller as FBI director, officials familiar with the nomination process said, according to CNN. Mr. Comey, a Republican, served as a deputy attorney general under President George W. Bush. LINK

USA Today's Kevin Johnson and Aamer Madhani: " Obama to pick Comey to replace Mueller at FBI." President Obama plans to nominate James Comey, a former senior Justice Department official under President George W. Bush, to replace Robert Mueller as the next director of the Federal Bureau of Investigation, according to a government official knowledgeable of the nomination. The official, who was not authorized to comment on the pending announcement, said Obama decided on Comey over a list of candidates that included Lisa Monaco, who has served as the White House's top counterterrorism adviser since January. LINK

The Hills' Ian Swanson: " Obama to nominate Comey as next FBI director, sources say" President Obama will nominate former Deputy Attorney General James Comey to be the next director of the FBI, according to sources. Comey is a Republican who served in the Justice Department under President George W. Bush, and is perhaps best known for his time as acting Attorney General, when he refused to certify parts of the National Security Agency's domestic surveillance program. LINK

The Los Angeles Times' David G. Savage and Richard A. Serrano: " Obama to nominate Bush-era Justice Dept. official to head FBI" President Obama plans to nominate James B. Comey, a former senior Justice Department official who famously challenged warrantless eavesdropping under President George W. Bush, to replace Robert S. Mueller III as director of the FBI, officials said Wednesday. For the Obama White House, Comey's Republican credentials and record as a federal prosecutor made him an appealing candidate for the nation's top law enforcement job. By tradition, the FBI director is considered nonpartisan. LINK

MICHELE BACHMANN The Washington Post's Paul Kane: " Rep. Bachmann will not run for reelection in 2014" On a hot July afternoon in 2010, in the shadow of the U.S. Capitol, Rep. Michele Bachmann (R-Minn.) launched the House Tea Party Caucus with much fanfare and a little humility, declaring, "I am not the head of the tea party." It was a signature moment for the tea party and for Bachmann, who had parlayed her standing as one of the most identifiable faces of that anti-government movement to become one of the most recognizable political figures in American politics. And the new House caucus suggested that the movement's fervor was about to bear legislative fruit. LINK

Politico's Jake Sherman and Alex Isenstadt: " Michele Bachmann no force in Congress" Establishment Republicans have spent years tiptoeing around the tea party, concerned that its hot rhetoric and deep pockets could wreak havoc in their ranks and further disrupt the national party leadership's carefully laid plans. But Rep. Michele Bachmann's sudden fall exposes the reality of tea party players: Their power in Congress is mostly a mirage. LINK

Wall Street Journal's Janet Hook and Neil King Jr.: "Bachmann Won't Seek Re-Election" Minnesota Rep. Michele Bachmann, who won prominence as a leader of the tea-party opposition to President Barack Obama, announced Wednesday she wouldn't seek re-election-an abrupt retreat less than two years after she briefly topped the ranks of GOP candidates seeking the 2012 presidential nomination. Mrs. Bachmann's bid for the White House raised her national profile but also contributed to her political troubles. She barely won re-election to her House seat last year and has since seen inquiries begin into the financial activities of her presidential campaign. LINK

USA Today's Martha T. Moore: " Tea Party loses a top voice with Bachmann departure." Michele Bachmann's departure from Congress means the House loses its most mediagenic Tea Partier. The Minnesota Republican announced via video early Wednesday that she will not seek a fifth term in the House of Representatives. It was Bachmann who delivered the first Tea Party response to President Obama's State of the Union in 2011, an addition to the Republican response that underscored the importance of the Tea Party in the GOP. Bachmann's subsequent presidential campaign, though short, "put Tea Party issues in the forefront and made it a big league political movement. That's her contribution," says Sal Russo of the Tea Party Express political action committee. LINK

The New York Daily News' Adam Edelman: " Michele Bachmann, Tea Party darling, will not seek re-election to House of Representatives" Embattled Tea Party darling Michelle Bachmann said Wednesday she will not run for reelection to U.S. House of Representatives. The Minnesota Republican and former presidential candidate, embroiled in an investigation into possible campaign finance violations, had been facing a tight reelection race in her district. LINK

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