The Michigan Democrat, a first-term senator, is expected to lay out the economic and national security stakes of President

After a startling clash with President Trump, who has echoed the Kremlin view of the war, Ukraine’s leader is

President Trump said he would impose levies on America’s largest trading partners Tuesday. Industries are preparing for the worst.

Europeans would need to ramp up military spending quickly, a notion that has set off a market rally, led

European leaders pledge to assemble a “coalition of the willing” to develop a plan for ending Ukraine’s war with

The defense secretary’s instructions, which were given before President Trump’s blowup with the Ukrainian president, are apparently part of

Facing a wave of criticism from his former Senate colleagues, Secretary of State Marco Rubio backed the complaints lobbed

The question hovering over Washington was whether the confrontation was a spontaneous outburst or a planned verbal smack down.

The public blowup could propel President Vladimir V. Putin of Russia to escalate the fight in Ukraine instead of

The United States’ relationship with Ukraine erupted in a storm of acrimony on Friday as President Trump and Vice