On Sunday, Sen. Mitt Romney slammed Pres. Donald Trump.
Romney was upset that Pres. Trump shifted the blame for the SolarWinds hack from Russia to China.
Trump said "it may be China" that's responsible for the massive attack on US companies and government agencies, without citing evidence.
Secretary of State Mike Pompeo said Friday that Russia was to blame.
Romney told NBC News Sunday he was "disappointed" with Trump's remark.
"I think we've come to recognize that the president has a blind spot when it comes to Russia," he said.
