cosmos, nor anyone else, gets to call something obsolete on this issue because it's the senate that gets to make it's operational rules, not a president. A president cannot determine this for the senate.
“Experience should teach us to be most on our guard to protect liberty when the Government’s purposes are beneficent. Men born to freedom are naturally alert to repel invasion of their liberty by evil-minded rulers. The greatest dangers to liberty lurk in insidious encroachment by men of zeal, well-meaning but without understanding.” — James Madison