Senate Majority Leader Harry Reid (D-Nev.) was among the top beneficiaries of campaign donations from Sen. Mary Landrieu (D-La.) leadership Political Action Committee during the second half of 2009, according to a bi-annual Federal Election Commission report filed Thursday.

Landrieu dished out $10,000 to Reid, who is facing an increasingly tough re-election this cycle. Both those checks came in September before Landrieu became a key swing vote on the health care reform bill that was championed by Reid.

Reid may also benefit down the road from a $5,000 donation Landrieu made to the Nevada State Democratic Party on Dec. 22, the same day the health care bill was passed by the Senate.

Landrieu also gave fellow moderate Sen. Blanche Lincoln (D-Ark.) two checks in September that totaled $10,000. Lincoln is also facing a tough re-election and is currently competing with Reid for the dubious honor of most vulnerable Democratic Senator of the cycle now that Sen. Chris Dodd (D-Conn.) has announced his retirement.