India, March 26 -- A delegation of Russian lawmakers arrived in the United States this week, marking the first such visit in years and signaling what could become an early test of a fragile diplomatic reopening between Moscow and Washington. The trip, involving five members of the State Duma drawn from across party lines, reflects a cautious effort to reestablish parliamentary dialogue after years of near-total political isolation.

The visit, which Russian officials described as a "test phase," comes after what Moscow has characterized as a prolonged freeze in bilateral contacts during the previous US administration. According to Russian lawmakers arrived in the United States this week, marking the first such visit in years, a developme...