White House Press Secretary Jen Psaki says Vice President Kamala Harris will travel to the United States’ southern border with Mexico on Friday, nearly three months after President Joe Biden put her in charge of curbing the flow of migrant arrivals. Asked by reporters if the decision is related to former President Donald Trump's visit to the border next week, Psaki says she does not believe Harris' visit "is going to prevent or change what the former president of the United States says when he goes to the border in a couple of days." IMAGES AND SOUNDBITES