Several Democrats in tough election fights are getting financial help from powerful defense contractors who are spending at record levels this cycle.

According to The Hill's Roxana Tiron, defense companies and their affiliated interests are fighting to preserve their contracts and bottom lines. "That, in many cases, means seeking support for current spending levels from members of Congress, who hold the power of the purse," Tiron reported.

Lockheed Martin's PAC, for instance, has contributed $2,352,950 during the 2010 election cycle, with several Democrats benefiting from its largesse. 

Rep. Ike Skelton (D-Mo.), the chairman of the House Armed Services Committee, received $10,000 from the PAC — the maximum contribution per cycle — as did Reps. Patrick Murphy (D-Pa.) and Kendrick Meek (D-Fla.), who are running for Senate.

Meanwhile, Boeing Co.'s PAC, which has spent $2,197,000 this cycle, donated the maximum to Sen. Blanche Lincoln (D-Ark.), who's facing a tough reelection fight against Rep. John Boozman (R-Ark.).

The defense PACs are hedging their bets, also giving significantly to Republican members.