He used proxies to mask his location during a satellite interview at a Texas festival.
The director of national intelligence said an “anticipatory warning” was given.
The congressional defense committees will dive into a dizzying budget schedule next week on Capitol Hill.
The visit “will highlight the strong support of the United States," the White House said.
The former national security advisor warned standoff with Putin could spiral out of control.
“I think he wants to be back on the world stage," the House Intel chairman said.
Gates said past cuts were made "because we thought the world was going to be a safer place."
An Obama aide said Putin can end mounting tensions over Crimea.
Obama spoke by phone with leaders Britain, France, Italy, Lithuania, Latvian and Estonia.
Many observers worry Russia has been getting the best of the United States.