Tonight is a primary night with elections in Kentucky, Pennsylvania, Arkansas and Oregon.

Depending on how the elections go today, the spinmeisters will work their story-telling magic in various ways.

It appears the Pennsylvania Democratic electorate is rapidly moving toward Rep. Joe Sestak in his May 18 primary challenge to former long-term Republican senator Arlen Specter. Specter left the GOP last year when he thought he would lose the Republican primary and determined running as a Democrat would give him a better shot at keeping his seat. With the backing of the White House, Specter has led Sestak in the polls for months, but with the election less than a week away, the trend is now moving in Sestak’s direction.

It appears that Democrats want more reliable Democrats in office, and nobody wants incumbents to stay in place.

In a conference call focused closely on the possibility of moving health care through reconciliation, Arlen Specter invoked Justice Jackson’s comment to justify his support for putting health care through the reconciliation process.

Yes, I’m glad that Arlen “the Scrapple formerly known as Haggis” Specter has come out in support of Nancy Pelosi’s suggestion that CIA misled her in her September 2002 briefing.

“The CIA has a very bad record when it comes to — I was about to say ‘candid’; that’s too mild — to honesty,” Specter, a former chairman of the Senate Intelligence Committee, said in a lunch address to the American Law

Labor will no doubt be disappointed by these sacrifices to the bill, but if it means getting something passed, they will probably be happy to make these concessions which satisfy the demands of critics like Blanche Lincoln, Mark Pryor, Jim Webb, Michael Bennet, Mark Udall and Ben Nelson.

Arlen Specter (D-RD-Pa.) is born again. But unlike most converts, he’s not exactly zealous about his new religion.

In the same breath that he announced his switch to the Democratic Party last week, Specter was quick to assert his opposition to the Employee Free Choice Act. The legislation, which would level the playing field for workers seeking to form unions, depends upon 60 votes for cloture in the Senate (that is, we need 60 senators to agree to let the bill come to a vote).

It all depends on what your definition of “loyal” is.

Yesterday, the Establishment Democrats welcomed Arlen Specter to the party with open arms. Today, he stabs them in the back.