The Senate on Tuesday confirmed Antony Blinken as America’s top diplomat, tasked with carrying out President Biden’s commitment to reverse the Trump administration’s “America First” doctrine that weakened international alliances.

Senators voted 78-22 to approve Blinken, a longtime Biden confidant, as the nation’s 71st secretary of state, succeeding Mike Pompeo. The position is the most senior Cabinet position, with the secretary fourth in the line of presidential succession.

Read the full story on BostonGlobe.com.