Justices Say E.P.A. Has Power to Act on Harmful Gases  —  In one of its most important environmental decisions in years, the Supreme Court ruled on Monday that the Environmental Protection Agency has the authority to regulate heat-trapping gases in automobile emissions.

Reid Backs Iraq War-Funds Cutoff  —  Senate Leader Makes It Clear a Bush Veto Wouldn't End Debate on Withdrawal  —  Senate Majority Leader Harry M. Reid yesterday endorsed the Senate's toughest antiwar bill yet, a bid to cut off funding within a year, sending a clear signal to President Bush …

McCain Wrong on Iraq Security, Merchants Say  —  A day after members of an American Congressional delegation led by Senator John McCain pointed to their brief visit to Baghdad's central market as evidence that the new security plan for the city was working, the merchants there were incredulous about the Americans' conclusions.

Featured Slideshow II: Openly Gay Celebrities  —  (CBS) NEW YORK Several candidates for president are on a fast pace for fundraising.  Democrat Hillary Clinton has set a record and Republican Rudy Giuliani isn't far behind.  —  But it's what Giuliani said Monday that will likely steal the headlines.

John Kerry: McCain Approached Me About Joining Dem Ticket in 2004  —  On Monday afternoon I had the chance to speak with Senator John Kerry of Massachusetts, the Democratic Party's nominee for President in 2004.  During the interview, which covers a range of topics and which I will be posting later …

How Bogus Letter Became a Case for War  —  Intelligence Failures Surrounded Inquiry on Iraq-Niger Uranium Claim  —  It was 3 a.m. in Italy on Jan. 29, 2003, when President Bush in Washington began reading his State of the Union address that included the now famous — later retracted …

Via Joan Walsh, NBC's Andrea Mitchell is confirming her scoop that (a) moderate Republican Senators don't think the "surge" will work but temporarily supported it anyway; and (b) will withdraw their support for the war if the "surge" doesn't show progress by late August.

Conservative Voters, It's Time to Give In to Your Inner Rebel  —  In life, there are times to make a safe choice.  Should you go to the gym in the morning or pour yourself a bowl of Miller Lite Cheerios?  Should you take the car rental insurance or chance it?  Decisions, decisions.

New Iran Hostage Pictures  —  Iran has released fresh pictures of the 15 British sailors and marines being held captive in the country.  —  The first picture, apparently a still taken from a video, showed six sailors sitting in blue and red tracksuits on a carpet in a room.

Obama Built Donor Network From Roots Up  —  CHICAGO — When Barack Obama announced to friends over brunch in 2002 that he planned to run for the United States Senate, one of their first questions was how he could possibly raise the necessary millions.  —  After all, two and a half years …

Romney Reaps $20 Million to Top G.O.P. Rivals  —  Mitt Romney's presidential campaign said Monday that it had raised $20 million in the first quarter, tapping two distant but rich networks — Wall Street and the Mormon Church — to easily outpace his better-known Republican primary rivals.