Venezuela bans George W. Bush, Dick Cheney and Marco Rubio from entering the country. Obama is still welcome?

George W. Bush, Dick Cheney and Marco Rubio are persona non grata in Venezuela now. Barack Obama and Joe Biden still seem to be welcome.

U.S. citizens who travel to Venezuela now will be required to obtain visas, Maduro said, and some current and former U.S. officials will be banned from entering the country. They include former President George W Bush, former Vice President Dick Cheney, former director of central intelligence George Tenet, and Senator Marco Rubio, a Florida Republican who is running for president.
“In the past several days, we’ve detected activity and captured several Americans involved in espionage, trying to capture people,” Maduro said. “To protect our country we’re going to introduce an obligatory visa system for any American who wants to come here. They’ll have to pay in dollars what Venezuelans have to pay to go to the U.S.”
Another U.S. politician banned by Maduro, Republican Representative Mario Diaz-Balart of Florida, responded in a Twitter message: “I’ve always wanted to travel to a corrupt country that is not a free democracy. And now Castro’s lap dog won’t let me!”