The mid-terms are almost guaranteed in my view. People like to vote against the incumbent in the white house and trump is the most unpopular president in memory.
Let us assume no further hostilities arise between the USA and Iran. This means petrol prices will eventually fall but slowly but remember some of the costs are already embedded in the system. Trump has wrong views about tariffs and they raise the cost of products but Trump will want to raise more. Inflation will still be at a worrying level come november. It is unlikely the Fed will be hawkish
His cabinet is made up of incompetents so we can expect more poor decisions being made.
In essence it is getting too late to change even if someone wanted to.
The other thing is the US voter gives Trump too much power and then votes in the mid terms to put some hand brakes on.
Trump himself is getting worse. Whether it is going to sleep when cameras are on ( and then foolishly denying it) or simply giving more evidence he is cognitively challenged. Watch this as Trump just cannot handle this psychologically.
I might just add gerrymandering does not help a lot. Evidence from our country holds malapportionment will win government for parties who do not win the vote but gerrymandering rarely does. If a big swing is on those 'safe' seats are no longer 'safe'.
So a big swing should occur in november.