Biden and Trump to visit US-Mexico border as immigration plays key role in election | US immigration

Joe Biden and his all-but certain Republican challenger, Donald Trump, will make dueling visits to Texas border towns on Thursday, a rare overlap that sets the stage for an election season clash over immigration.

In Brownsville, along the Rio Grande, Biden is expected to hammer Republicans for blocking a bipartisan border security deal after Trump expressed his vocal opposition to the measure. Hundreds of miles north-west, Trump will deliver remarks from a state park in Eagle Pass, which has become the epicenter of a showdown between the Biden administration and the Republican governor of…