My memory is not very good lately for recalling specific incidents.
Sen. Martinez has gone against the President on several issues since his election. One of them was on off-shore drilling. He opposed the Energy Bill which called for drilling 150 miles off the Florida coast in the Gulf of Mexico.
He also made some statement about US troops in Iraq, but I can't recall the specifics.
I have some friends who could name you letter and verse. They are seriously disappointed in him.
"Sen. Martinez has gone against the President on several issues since his election. One of them was on off-shore drilling. He opposed the Energy Bill which called for drilling 150 miles off the Florida coast in the Gulf of Mexico. "
Off-shore drilling is political poison in Florida. The fact that Republican Congressman Mica is in favor of it (probably because I think he used to be a lobbyist for the oil industry and feels strongly about the issue) was viewed as noteworthy by Michael Barone's Almanac of American Politics.
Being disappointed at Mel Martinez for opposing off-shore drilling is kinda like being disappointed in Senator John Ensign (R-Nevada) for opposing the Yucca Mountain nuclear repository. There are certain local issues that politicians are best served not messing with.
But I'm sure that Martinez has taken unfortunate stances since being elected; he is far from perfect, although I would posit that he's pretty good for a Senator from a state that Bush carried by only 5%.