Federal prosecutors are preparing to announce whether they'll retry a border activist after a U.S. jury was unable to reach a verdict against him on charges of conspiracy to transport and harbor migrants.

The decision about whether to file new charges against Scott Daniel Warren is expected at a court hearing Tuesday. 

During Warren's trial in June, defense attorneys argued he was just being kind by giving two migrants water, food and lodging when he was arrested in early 2018. He faced up to 20 years imprisonment.

(U.S. Department of Health and Human Services via AP, File)

Border officials are expected to unveil the newest outdoor facility to detain immigrant children and families who cross the U.S. border near Yuma, Arizona.

Senate Majority Leader Mitch McConnell is rejecting changes that House Democrats want in a multi-billion dollar border bill.

Instead, the Kentucky Republican says it's time for the House to accept a bipartisan package overwhelmingly approved by the Senate and send it to President Donald Trump for his signature.

House Speaker Nancy Pelosi and her chamber's Democrats want to add provisions to the Senate measure that would strengthen standards of care for detained migrant families and children.

(AP Photo/Patrick Semansky)

The U.S. House has approved a $4.5 billion emergency border aid package to care for thousands of migrant families and unaccompanied children detained after crossing the U.S.-Mexico border.

The bill passed last night/Tuesday along party lines after House Speaker Nancy Pelosi quelled a mini-revolt by progressives and Hispanic lawmakers who sought significant changes to the legislation.

(AP Photo/J. Scott Applewhite)

The White House is threatening to veto a $4.5 billion House bill aimed at improving the treatment of migrant families detained after crossing the U.S. southern border, saying the measure would hamstring the administration's border security efforts and raising fresh questions about the legislation's fate.