The Campaign for Primary Accountability, a super PAC that has targeted incumbent members of Congress, raised more than $645,000 in March, federal documents show. A notable and controversial donation of $25,000 came from House Majority Leader Eric Cantor.

The sudden departure of trusted House Majority Leader Eric Cantor aide Brad Dayspring late last week followed a heated, nearly physical confrontation with another senior Cantor staffer over the unveiling of a major GOP initiative.

Speaker John Boehner (R-Ohio) and Majority Leader Eric Cantor (R-Va.) are being prodded by their House GOP colleagues to work through their battle-scarred relationship.

Cantor donated $25,000 to an anti-incumbent super PAC. The super PAC influenced a primary between two GOP Representatives who had their district combined. Cantor is also feeling the heat from his party because the super PAC is running campaigns against other GOP party members and allies.

Brad Dayspring, a top Cantor aide, resigned from his position along side Cantor after a heated argument with Mike Ference, another top Cantor aide, over the unveiling of Cantor's new JOBS Bill. Witnesses say that Dayspring and Ference nearly came to blows after bipartisan support and support from business leaders began to fall apart.

Eric Cantor and John Boehner have been feuding behind the scenes for the past year. Senior staffers to Boehner and Cantor have met several times during the past month in an attempt to iron out their differences — which range from style to strategy to substance. They have recently decided, for the good of the Republican Party to set aside or at least tone down their rivalry.