It's a "major problem" that Senate Democrats haven't passed a budget for 2012, Virginia Senate candidate Tim KaineTimothy (Tim) Michael KaineThis week: Democrats face fractures in spending fight Democrats mull overhaul of sweeping election bill Overnight Defense: Pentagon details military construction projects getting .2B restored from wall funds | Biden chooses former commander to lead Navy | Bill seeks to boost visa program for Afghans who helped US MORE (D) said Monday.

Kaine, who most recently served as chairman of the Democratic National Committee (DNC), said he thought the Senate should pass a budget.

"I don't disagree with you that the absence of a budget [in the Senate] is a major problem," Kaine said on CNBC, when former GE CEO Jack Welch pressed him on the issue. 

The statement is another example of Kaine getting out ahead of his party. He was one of the first and most prominent Democrats to call for Rep. Anthony Weiner's (D-N.Y.) resignation last week after Weiner admitted to trying to cover up his lewd behavior on Twitter.  

Kaine is positioning himself to run as a centrist in Virginia, which is likely to be a key swing state in the 2012 presidential election. 

Republicans have complained that only the GOP-controlled House has done the work of passing a budget, having authorized a plan from Budget Committee Chairman Rep. Paul RyanPaul Davis RyanZaid Jilani: Paul Ryan worried about culture war distracting from issues 'that really concern him' The Memo: Marjorie Taylor Greene exposes GOP establishment's lack of power The Hill's 12:30 Report - Senators back in session after late-night hold-up MORE (R-Wis.). Sen. Jeff SessionsJefferson (Jeff) Beauregard SessionsHouse Judiciary to probe DOJ's seizure of data from lawmakers, journalists Senate Judiciary begins investigation into DOJ lawmaker subpoenas NSA leaker Reality Winner released from federal prison MORE (R-Ala.), the ranking member of the Senate's budget panel, has been a particularly outspoken critic of Senate Democrats for not having passed a budget.

The Democratic majority in the Senate has yet to produce a 2012 budget. Sen. Kent Conrad (D-N.D.), the chairman of the Senate Budget Committee, said he intends to produce one, but not until the fiscal talks led by Vice President Biden conclude. 

Neither the House nor the Senate passed a budget last year while Democrats held the majorities in both chambers. 

Senate Democrats held a vote last month on Ryan's budget, in part to put some vulnerable Republicans on the record when it comes to that proposal's more controversial measures, including its reforms to Medicare. That budget failed 42-55, and when Republicans offered a motion that resulted in a vote on President Obama's 2012 budget proposal, it failed unanimously, 0-97.

"I think you raise a great point," Kaine responded to Welch's gripe about the lack of a budget. "This is a very serious problem with Washington and the legislative area not doing what it needs to do. I was a governor of Virginia; we passed budgets."

Kaine said that both revenues and spending should be on the table in addressing fiscal challenges but didn't delve into specifics.