They did both. President Clinton Vetoed ANWR in 1996. Senate OKs oil drilling in Alaska's ANWR
http://seattlepi.nwsource.com/local/216352_anwr17.html
Part of his reasons at the time was that it would take ten years to produce, so it wasn't worth allowing. Eleven years later, that same stupid argument is still being used.
Don’t forget that 8 RINOs helped to defeat opening ANWR in 2005....led by our hero John McCain
So did all the GOP Senators vote to drill in ANWR 1996 and 2005?