What bears remembering is the WHOLE oath he swore, of which supporting the Constitution is only one part:
“I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter. So help me God.”
Many of Massie’s antics such as defunding ICE fail to defent against enemies foreign and domestic. As many founding fathers feared, the oath was unnecessary and limiting, for example should members of Congress not also be required to support federal law? Much of which is not described by the Constitution.
Delegate James Wilson of Pennsylvania viewed oaths as “left handed security only” and that “a good government did not need them and a bad one could not or ought not to be supported.” The lexicographer and political writer Noah Webster called oaths “instruments of slavery” and a “badge of folly, borrowed from the dark ages of bigotry.” Both Wilson and Webster argued that people would be naturally inclined to support just governments so oaths were unnecessary. Many others thought such concerns were overwrought. In his 1833 Commentaries on the Constitution, Supreme Court Justice Joseph Story wrote that requiring oaths for government officials “would seem to be a proposition too clear to render any reasoning necessary in support of it.”
Literally NONE of his votes violate his oath; they uphold them.