Republicans gathering in Dallas this week will celebrate President Trump and rally support ahead of US midterm elections, but a disappointing showing in the November 3 vote could sharpen an already simmering debate over who comes next and what will become of the party he transformed ↧ As Trump takes center stage in Dallas, Republicans debate a future ... While Trump remains the party's dominant figure, the midterms could leave Republicans with diminished power in Washington, fueling discussions over his heir apparent and party policies ​after he leaves office in 2029.