President Biden and former President Donald Trump made dueling visits to the U.S.-Mexico border Thursday, as the two likely 2024 opponents used Texas towns 300 miles apart to blame the other’s party for failing to fix the migrant crisis.
The nationally televised events—each featuring meetings with law-enforcement officials, tours of border barriers and curious onlookers—highlighted the extraordinary importance of immigration as an issue in the presidential election that has become a top concern for voters both near and far from the border amid record illegal crossings.
Biden, making his second trip to the border…