Republicans are definitely feeling the heat from their own consituents. Here’s a quote from today’s Washington Post:

The pushback on Katrina aid, which the White House is also confronting among House Republicans, represents the loudest and most widespread dissent Bush has faced from his own party since it took full control of Congress in 2002. As polls show the president’s approval numbers falling, there is growing concern among lawmakers that GOP margins in Congress could shrink next year, and even rank-and-file Republicans are complaining that Bush is shirking the difficult budget decisions that must accompany the rebuilding bonanza.

Rep. Tom Feeney (R-Fla.) said he and other fiscal conservatives are feeling “genuine concern [which] could easily turn into frustration and anger.”