Richard Burr (Getty)

North Carolina Sen. Richard M. Burr has been vocal this week, as he spearheads a home-state battle against a bill on the Senate floor that would allow the federal Food and Drug Administration to regulate tobacco products.

But the first-term Republican, who is seen as vulnerable to a challenge in his 2010 re-election contest, had less to say on Thursday about speculation over which Democrat will seek to take him on next year.  

“We’re on track with what we have planned to raise, and structurally have put the campaign together,” said Burr, who reported $1.6 million in cash on hand in his campaign account as of the end of March.  

He acknowledged that he has been targeted for defeat by Democratic strategists, saying, “I’m sure with the bounty that the Democratic Senatorial [Campaign] Committee has on my head, I won’t go unopposed.”