Trump-backed candidates have won 199 races in the 2022 midterms tally reported by NBC News, with 34 losses and 33 races still uncalled at the time of that analysis. For a narrower competitive-races view, NBC News said 46 won and 33 lost.

If you mean a different election cycle or a fresh 2026 count, the total changes depending on which races you include. The most defensible answer from the available reporting is:

[13] [13]
ScopeTrump-backed winsSource
All called races in the 2022 midterms analysis199
Competitive races only46