Russian opposition leaders said on Monday that allegations of fraud have undermined Putin’s legitimacy.
Chess champion-turned-activist Garry Kasparov said that many Russians would not accept Putin as “a legitimate president”.
“He’s badly wounded, maybe even deadly wounded as a political leader and I have no doubt that he will not survive the next six years,” he said.
A one-time Putin ally also turned on the election victor.
Mikhail Kasyanov served as prime minister during the former KGB man’s first tenure as president.
As leader of the People’s Democratic Union, he is calling on his old boss to announce early elections and make real democratic reforms.
“We understand what the constitution is about,” Kasyanov said, referring to the limit on serving two successive terms in the Kremlin.