By Timothy Gardner WASHINGTON (Reuters) – The U.S. House on Monday passed a ban on imports of Russian uranium as lawmakers seek to add pressure on Moscow for its war on Ukraine, though the measure has waivers in case of supply concerns for domestic reactors. The bill must pass the Senate and be signed by President Joe Biden before becoming law. It is uncertain whether there will be enough time in the Senate schedule for it to be voted on this year. The bill passed by voice vote in the House after the chamber suspended usual voting rules on the measure. “The risks of continuing this dependence …