While the House Republican leadership was reading the entirety of the U.S. Constitution on floor of the House, and the the House Republican Conference pledged to change the House rules so that anyone introducing a bill would have to cite the authority under the Constitution for that bill, Rep. Scott Garrett (R-NJ) proposed an amendment to the proposed rule-change on Wednesday morning, to forbid a member of the Congress from citing "the General Welfare Clause" or the "Necessary and Proper Clause" as his authority. The House Republican Conference did not agree to his changes when he proposed them, but he has vowed to press for them.
And here's another vague, old-fashioned article he doesn't like:
Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort.
from Article 3, Section 3 of the U.S. Constitution