Here is how MAGA will steal the midterms:
1. Mike Johnson fires the current congressional clerk and replaces him with a Trump loyalist
2. Democrats elect, say, 220 certified representatives, and Republicans elect 215
3. This Trump loyalist clerk claims that 6 of those 220 Democrat elections are invalid due to suspected fraud
4. Mike Johnson refuses to seat 6 of the 220, until the suspected "fraud" can be investigated
5. This leaves the initial roll count 215 Republican to 214 Democrat, and only the members currently seated on the initial roll are allowed to vote for Speaker
6. Mike Johnson is re-elected elected as Speaker by those 215 Republicans
7. Now that they have the majority and the Speaker again, they have constitutional authority to judge those 6 disputed claims
8. They invalidate those 6 elections and seat Republicans instead by special appointment
9. MAGA keeps control of all levers of government
Notice that they don't need "proof" to make this happen. Only suspicion. Which they already have.