President Trump tweeted that talks with Mexican officials would continue Thursday — raising hopes they may be able to reach an agreement to avert potentially crippling tariffs on Mexican imports.

The administration is under pressure from Mexico and top Republicans to back off of a threat to impose tariffs on that country if it does not make an effort to curb illegal immigration.

President Trump has threatened tariffs as punishment for migration flows. Behind the scenes of public negotiations, sources familiar with the talks say that Mexican officials are prepared to respond.