The second administration of President Donald Trump has continued to recast the federal government, implement "America First" policies and redefine America's support for Ukraine.

Trump's aides and Republican allies voiced support over the weekend for the president, following his charged Oval Office meeting with President Volodymyr Zelenskyy. European leaders began work on Sunday on their own framework for peace.

The president is expected on Tuesday to put in place delayed tariffs on goods from Mexico and Canada, along with increased duties on goods from China.