MILWAUKEE — Anticipation around former President Donald Trump tapping Sen. J.D. Vance (R-OH) as his vice presidential nominee not only concerned the next four months before the 2024 election and the next four years, should he and Vance win in November.

But Trump’s decision on Monday, announced during the opening day of the Republican National Convention in Milwaukee, could also define the GOP for the four or eight years after that should Vance become the party’s prohibitive favorite in 2028.