If we're talking about the CFMA of 2000, saying that "Capuano voted for it" is very misleading. That act was snuck through by the Republican leadership of the house, bypassing all normal processes. It didn't go through committee, it was never debated, and it was never voted on. Rather, the House Republican leadership incorporated it by reference, rather late in the process, into the 2000 omnibus budget legislation. If members of Congress voted against every budget that included something they disagreed with, no budget would ever have a ghost of a chance of passing and the government would completely stop working.

When the House leadership uses their position to put members of Congress in a situation like this, they may or may not be abusing their power, depending on how substantive their addition is. In this case, it was clearly significant, and should have gone through committee as a separate bill or been presented as an amendment to be debated and voted on.

But we have no way to determine or state whether any particular member of the House supported or opposed this measure, or "voted" for or against it, except their word.