Senate Democrats plan to stay up all night Monday night and take turns speaking on the floor to urge action on climate change. Thirty of them are expected to participate in the unusual event.

These talk-a-thons tend to bring about false claims of being a filibuster. What Democrats will do is not a filibuster in any sense of the word.

Senate.gov defines a filibuster as "any attempt to block or delay Senate action on a bill or other matter by debating it at length, by offering numerous procedural motions, or by any other delaying or obstructive actions."

Senate Minority Leader Mitch McConnell is crushing his conservative primary challenger, Matt Bevin, according to a new poll by the Republican-affiliated Public Opinion Strategies.

McConnell leads GOP candidate Matt Bevin by a whopping margin of 61 to 23 percent, the survey found. He polls about equally well, as compared to Bevin, with self-identified GOP conservatives, moderates and tea partiers.

Long-simmering between Sens. Ted Cruz (R-TX) and Rand Paul (R-KY) is rising to the surface in the form of a public feud over foreign policy.

The prominent conservative freshman are both rumored to have presidential ambitions in 2016.

Senate Democratic leaders really want to run against the Koch brothers in the 2014 mid-term elections.

A recent fundraising letter penned by Senate Majority Leader Harry Reid (D-NV), seeking donations for the Democratic Senatorial Campaign Committee, provides a glimpse into how the party will vilify the billionaire oil tycoons in their battle to maintain control of the Senate.

House Republicans have a bold new strategy to attack Obamacare, which involves huge pay cuts for physicians unless Democrats agree to delay the law's individual mandate to buy insurance.

GOP leaders intend to vote on legislation this week, aides say, to delay the individual mandate in order to fund a "doc fix" that avoids a 24 percent pay cut to physicians under Medicare -- which will automatically take effect on April 1 unless Congress acts. Inaction would disrupt the health care system, in part by causing many doctors to stop accepting Medicare patients.

Obamacare McCarthyism jumped the shark in the Texas primary this week.

No politician has deployed the tactic more fervently than Texas Rep. Steve Stockman, and his underdog campaign for the GOP's Senate nomination failed spectacularly. For all his woes and lack of effort in other areas, the congressman went above and beyond when it came to accusing Sen. John Cornyn (R-TX) of harboring a secret love for Obamacare, the law that Republicans roundly detest.

The Justice Department is responding to Louisiana Gov. Bobby Jindal's thinly-veiled comparison of U.S. Attorney General Eric Holder to a segregationist by sending him a book about the civil rights movement.

"Walking With the Wind: A Memoir of the Movement" was written by Rep. John Lewis (D-GA), a civil rights icon. The DOJ bookmarked a page in which Lewis writes about Vivian Malone Jones, the first black graduate of the University of Alabama, who was blocked at the door by segregationist Gov. George Wallace when seeking to enroll.

Jones is Holder's sister-in-law.

Democratic senators intend to occupy the Senate floor from Monday night at 10 P.M. ET through Tuesday morning at 9 A.M., taking turns speaking to urge action on climate change.

The event, organized by Sen. Brian Schatz (D-HI), features 28 Senate Democrats, including the top four leaders and members of the Senate Climate Action Task Force.

"Climate change is real, it is caused by humans, and it is solvable," Schatz said. "Congress must act."

When Louisiana Gov. Bobby Jindal (R) made a thinly veiled reference comparing Eric Holder to George Wallace before a group of conservatives, it may not have occurred him that the attorney general's sister-in-law, Vivian Malone Jones, was one of the segregationist's actual victims during the Jim Crow era.

It's not every day you see a powerful politician waging an unapologetic public war against a couple of private citizens. But Harry Reid is no ordinary politician, and the Koch brothers are no ordinary men.

The Democratic Senate majority leader is using his bully pulpit to pick an increasingly acrimonious fight with the billionaire oil tycoons, seizing on every opportunity he gets -- and creating new ones -- to throw everything but the kitchen sink at them. In recent weeks he has called them "un-American" plutocrats who "have no conscience and are willing to lie" in order to "rig the system" against the middle class. He has also accused them of bribing foreign governments in order to expand their energy empire.

"I've been told by lots of people, 'Don't pick a fight. They're wealthy. They're very vengeful.' But without sounding too melodramatic, if not me, then who?" Reid told reporters in his Capitol office on Thursday. "I am after the two [Koch] brothers. They are two people who are trying to buy America. They have the money to do it."