President Trump said he would speak with President Vladimir V. Putin of Russia on Tuesday about the war in Ukraine, noting that there had already been discussions about “dividing up certain assets” as the president continued to express some optimism that Moscow would agree to a cease-fire proposal.

Trump raised tariffs on imports of steel and aluminum to a flat 25%, without exemptions or exceptions, in a move that was designed to help U.S. industry while contributing to an escalating trade war.