VIENNA (AP) — U.S. Secretary of State Rex Tillerson said Thursday that Ukraine was the sole sticking point keeping the United States and Russia from forging a closer relationship, suggesting that all other disputes were secondary.

"The issue that stands in the way is Ukraine," Tillerson said.

The assessment from America's top diplomat notably played down other areas of dispute, particularly Russia's meddling in the 2016 presidential election. U.S. intelligence agencies, including the CIA and FBI, have concluded the Kremlin interfered in the election in an effort to help now-President Donald Tr...