Republican "committee chairs" means that Republicans have a majority control of the committees. What comes out of that committee largely depends on the votes and actions of the Republican members of that particular committee, not just the chair.
That means the TEApublicans will at least have a fighting chance to change, propose, or completely stop things. It all depends on who's on any given committee.
With RAT chairs....fogedaboutit.
McConnell intends to fully fund the Obama agenda in the lame duck. Committees will be little more than debate clubs and potemkin opposition to obama under his “leadership”. McCain is already talking about “bipartisanship” on confirmations.
No matter the crime, House committees have steadfastly refused to directly engage obama the past four years. A GOP Senate will be no better.