(CNN) - Sen. Arlen Specter's campaign said Tuesday it raked in $1.73 million in the second quarter of this year, giving the Republican-turned-Democrat from Pennsylvania around $7.5 million in cash on hand.
"Our impressive fundraising this quarter demonstrates the strong support I have in the Democratic Party and across Pennsylvania," said Specter in a statement released by his campaign Tuesday.
Rep. Joe Sestak's re-election campaign reported Monday that the Pennsylvania Democrat raised more than $1 million in this year's second quarter, with around $4.2 million in the bank.
The two-term congressman from the state's 7th District has said that he plans to challenge Specter for the Democratic Senate nomination next year. Specter has the backing of President Barack Obama and party leaders as he gears up for re-election in 2010. On Tuesday, his campaign pointed to a new string of endorsements by local Democratic officials as evidence he was making headway in his efforts to win over the party's base.
On Monday, Pennsylvania Republican Pat Toomey said his campaign for the Senate has raised $1.6 million since he jumped into the race on April 15. Toomey's campaign also announced that they have $1.1 million cash on hand.