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 and Amanda VanAllen

BOSTON ATTACKS: USA Today's David Jackson: " Obama to visit Boston Thursday, calls attack terrorism" President Obama, who declared the Boston Marathon bombings "an act of terror" on Tuesday, will visit the city on Thursday to attend a memorial service for the victims and survivors. Obama plans to make remarks "at an interfaith service dedicated to those who were gravely wounded or killed in Monday's bombing," White House spokesman Jay Carney said. LINK

Politico's Jake Sherman: " Boston Marathon Bombing: Congress reacts, Dems talk sequester" With the Boston Marathon bombings less than 24 hours old, some on Capitol Hill are beginning to say the attack shows why Congress should've stopped automatic spending cuts from taking hold in March. House Minority Whip Steny Hoyer (D-Md.), responding to a question at a Tuesday morning press conference, said the bombings are "clearly another place where it demonstrates why having the ability to address security concerns is important." LINK

SEN. ROGER WICKER: The Hill's Jordy Yager and Jeremy Herb: " Deadly poison sent to Sen. Wicker" A letter addressed to Sen. Roger Wicker (R-Miss.) tested positive for ricin on Tuesday, according to U.S. Capitol Police. Capitol Police intercepted a letter at an off-site postal screening center Tuesday morning and advised senators in an evening briefing that none of their offices were in danger, Sen. Mary Landrieu (D-La.) said. LINK

IMMIGRATION REFORM: ABC News' Mary Bruce and Serena Marshall: " McCain, Schumer: Obama Supports Immigration Reform Bill" Senators John McCain, R-Ariz., and Chuck Schumer, D-N.Y., emerged from a White House meeting today confident that President Obama supports the immigration reform bill they plan to introduce tonight. "While he certainly might not agree with every single part of it, he was very supportive of the bill we have put together and simply wants to make sure we keep moving it along and get something done," Schumer told reporters at the White House. LINK

The New York Times' Julia Preston: " Beside a Path to Citizenship, a New Path on Immigration" A sweeping immigration bill that a bipartisan group of eight senators completed on Tuesday seeks not only to fix chronic problems in the system and bring an estimated 11 million illegal immigrants to the right side of the law. It would also reorient future immigration with the goal of bringing foreigners to the country based increasingly on the job skills and personal assets they can offer. LINK

The Washington Post's David Nakamura and Aaron C. Davis: " Immigration measure's opponents hope delays will kill bipartisan bill" Leading Capitol Hill opponents of a Senate proposal to overhaul the nation's immigration system are coalescing around a strategy to kill the bill by delaying the legislative process as long as possible, providing time to offer "poison pill" amendments aimed at breaking apart the fragile bipartisan group that developed the plan, according to lawmakers and legislative aides. The tactics, used successfully by opponents of an immigration bill during a 2007 debate in the Senate, are part of an effort to exploit public fissures over core components of the comprehensive legislation introduced Tuesday by eight lawmakers who spent months negotiating the details. LINK

Bloomberg's Kathleen Hunter and Jonathan D. Salant: " Republican Lawmakers Say Citizenship Path Same as Amnesty" A Senate plan to rewrite U.S. immigration law has stoked a years-old debate over allowing undocumented residents a chance to become citizens, a measure viewed by opponents as rewarding lawbreakers with "amnesty" and undercutting American workers. Though Republican opposition to creating a citizenship path for the nation's 11 million undocumented immigrants has waned since the November election, the issue divides the party. LINK

The Los Angeles Times' Lisa Mascaro and Christi Parsons: " Senate immigration bill looks promising despite some unease" Complete satisfaction with the Senate's bipartisan immigration proposal was hard to find Tuesday as details of the bill became known, but despite reservations, a growing consensus was developing in favor of the proposal as the best chance in a generation to achieve comprehensive immigration reform. Republicans, in particular, largely held their fire on the issue, as the party's elected officials warmed to the prospect of getting more resources for border security in exchange for a path to legal status for the 11 million immigrants living in the U.S. without legal authorization. LINK

The New York Daily News' Joseph Straw: " Obama calls bipartisan plan for immigration reform 'consistent' with administration's stance" President Obama on Tuesday welcomed a sweeping Senate immigration plan even though it ignores one of his key demands for reform. The bill, drafted by a bipartisan group of senators led by Sen. Chuck Schumer (D-N.Y.), would open a path to citizenship for 11 million illegal immigrants - but only if Homeland Security Department agents can meet targets like catching or deterring 90% of illegal crossers at busy border crossings within five years. LINK

The Washington Times' Stephen Dinan: " Senators put final touches on plan for immigration" After months of negotiations, the Gang of Eight senators were poised to file their immigration bill late Tuesday evening, striking a deal to immediately legalize most illegal immigrants and ease the path for future legal immigrants in exchange for promises of much stiffer border security, backed up by verifiable yardsticks. President Obama met with two of the negotiators Tuesday afternoon and blessed the broad outlines of the agreement, calling it "largely consistent" with what he had proposed. LINK

OTHER: The Wall Street Journal's Jon Hilsenrath: " Low Inflation Gives Fed Room" The latest reading on consumer prices could give the Federal Reserve a new reason to keep its easy-money policies intact-inflation shows signs of slowing. The Labor Department's consumer-price index was up 1.5% in March from a year earlier, the fourth time in five months that it has been below the Fed's 2% inflation goal. And while the core reading on consumer costs, which excludes volatile food and energy prices, was up 1.9%, it also remained below the goal for the fourth time in five months. LINK

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