It'd merely mean he becomes a 'lame duck' president, which will do wonders for his mood, i'm sure, when his proposals are shot down in the Senate. His second term will be dominated by power struggles for who succeeds him, assuming the SC shoots down his amendment to extend his presidency.With Trump it's all about ego. Of course the mids don't affect the remainder of his term, however the wider party and whoever is eyeing up his position will watch them with interest in terms of life beyond 2029. As will Trump because of the aforementioned. If the mids indicate the electorate aren't happy with the first half, it can influence changes during the second.