Pennsylvania Rep. Mark Critz is the latest Democrat to come out against President Obama's proposal to spend $50 billion on revamping the nation's infrastructure over the next year.

"Fifty-billion dollars of additional government spending will do little to create permanent jobs and will only add to our massive deficit. That's why I strongly oppose the president's misguided plan," Critz said. "President Obama needs to focus on our immediate employment crisis and help small businesses that will put people back to work."

Critz defeated Republican Tim Burns in the May special election for the seat formerly held by the late Rep. John Murtha (D-Pa.). During the campaign, he kept his distance from the Democratic leadership in his district. He did, however, attend a fundraiser with Vice President Joe Biden in Pittsburgh. 

Critz, who faces a rematch with Burns in November, joined several other vulnerable Democrats who have opposed the $50 billion spending plan. 

Rep. Ann Kirkpatrick (D-Ariz.) and Sen. Michael Bennet (D-Colo.) came out Wednesday against the spending.

"I'm so disappointed that the president's talking about more spending," Kirkpatrick said Wednesday on Fox News. 

"I will not support additional spending in a second stimulus package," Bennet said in a statement.

Spending has emerged as a contentious issue, with polls showing the federal budget deficit will matter more to voters this year than it has in the past decade.