Bunning is a senator and not a representative, which is a good thing. As a representative, and in accordance with his courageously principled stand against deficit spending, Bunning would have had to vote against every emergency war supplemental bill for the troops in Iraq and Af/Pak since 2003. Those war supplementals are debt-only, never deficit-neutral.
Bunning has always been a strong fiscal conservative. Do a bit of research on his debates against Greenspan and Bernake regarding fiscal policy.