What if the Democrats won Congress?

I have been trying to figure out how, if at all, a Democrat clean sweep in November's mid-term elections would change anything. I think none answer may be: not much.

Under Donald Trump, US policy, both at home and abroad, has been concentrated to an unprecedented degree one one man ruling through presidential decree and executive order. The courts have managed to rein some of his excesses, although the largely Trump-appointed Supreme Court has mainly protected him, other than in a few high-profile cases. Congress, on the either hand, has had very little influence on things and, even were the Democrats to control it, I'm not sure that would make much difference.

There has been a swing in American opinion, and there is a good chance that Democrats could win a slim majority in the House of Representatives, and maybe in the Senate too. It's by no means a foregone conclusion, but the chance is there, should the American people choose to seize it. This is true notwithstanding the likely efforts of the Trump administration to interfere in the elections by intimidating voters, seizing ballots, or denying the outcome of inconvenient election results, and past drives to gerrymander electoral districts, ban postal votes, etc.

But, if Democrats controlled Congress, what would change? There would, of course, be a strong symbolic effect, as it would be seen as a widespread repudiation of Trump and his policy. There is some congressional legislation in process, and Democrats could block any ongoing Republican nonsense, and even introduce somenchanges of their own, so that's something. But Trump could easily veto such initiatives, and the chances of Democrats swinging two-thirds of the vote (to veto the veto) are slim to none. The setting of the federal budget and the regular raising of federal debt ceiling may be about all they can influence to any great degree. Trump has already pushed through most of what he wants to achieve congressionally (e.g. his Big Beautiful Bill) in the first half of his term.

Democratic control of Congress could also dictate the terms and the make-up of committees, but the practical impact of those are very limited. Another attempt to impeach Trump is pretty unlikely.

One element I had not thought about is that, if the Democrats were to win Congress on November 3rd, some of the older Republican Supreme Court judges would probably be "encouraged" to retire before the new Congress would be sworn in in mid-January, so that Trump could appoint some younger for right candidates to extend the conservative majority for many years to come.

All in all, not a very edifying prospect. Tariffs would continue (insofar as the courts allow them), ICE detentions and enforced immigrant deportations would continue. All of the innumerable Trump executive orders would remain in place. Foreign policy would remain one of thoughtless aggrandisement and spite.

In the American political system, the President has way too much power. Yes, technically the President is directly elected, but if they then strike out on a completely different radical (arguably insane) path, there is little the electorate or an elected Congress can do about it. They need to fix that.

Yes, the mid-terms are important, but don't expect them to change the chaos of the Trump administration in any material way. As independent observers like GIS note, "the outcome of 2026 national elections will likely not significantly shift national policies or the direction of American foreign policy". Ouch!