Art II, Section 7 states the POTUS salary can't be changed during the term he was elected to. The 27th Amendment says the same thing for people in Congress.

That's a red herring, a distraction based on a technicality to cover his butt.

He often requests budget allocations and submits a budget. Previous presidents would submit budget requests for plans that they had drawn up. The prez proposes, but Congress disposes.

The technicality-as-distraction assumes that since Congress disposes the president simply has no ability to propose. Some like the distraction because it justifies what they already firmly believe to be true.

In this case, the first poster has the real objection to the idea. However, the distraction is still fairly commonly proffered whenever any responsibility for anything less than glorious is hinted at being attributable to the current president.

Then he could make the recommendation. It just makes sense to me.
A lot of the extremists in the house would definitely bitch like hell and I would love to see it!