DAY'S END ROUNDUP

FROM THE BLOGS:

What do April polls mean for the general election?
Micah Cohen at the FiveThirtyEight blog takes a look at the history of springtime poll leaders in presidential elections.

Romney won’t be able to shake the Etch-A-Sketch
Jonathan Chait at New York magazine looks at what the “flip-flopping” tag might mean in the general election.

Obama doesn’t lead, he campaigns
Michael Goodwin at the New York Post says there is no light between the White House and the president’s campaign.

Rubio is this year’s Palin
John Dickerson at Slate says Romney should avoid the rising GOP star.

OTHER NEWS SOURCES:

Rubio auditions for VP slot
Alexander Bolton at The Hill reports on the Florida senator’s hawkish foreign-policy speech.

Supreme Court seems favorable to Arizona illegal immigration law
Jordy Yager at The Hill reports on the oral arguments from the Supreme Court case.