According to House rules, when you submit a bill you also have to submit a document detailing what part of the Constitution gives you the authority to pass legislation. This was a recent Republican addition to the House rules and they often attempt to call out Democrats for what they see as misinterpretations of Constitutional authority.
However, when it comes to a Woman’s right to choose, they have no problem breaking this rule. Even though the Supreme Court settled this debate in 1973.