President Donald Trump speaks to reporters before leaving the White House in Washington, March 20, 2019.
Romney also tweeted Friday that in reading the special counsel's report he was "appalled" Americans working on the Trump campaign had welcomed help from Russia.
If @MittRomney spent the same energy fighting Barack Obama as he does fighting Donald Trump, he could have won the race (maybe)! pic.twitter.com/p5imhMJqS1 — Donald J. Trump (@realDonaldTrump) April 20, 2019.
Read more: Seth Rich cleared of WikiLeaks' accusation and other things you may have missed in the Mueller report | Top Democrat slams Trump over Libya: Supporting an 'authoritarian attacking a UN-backed government'.
On Saturday, Trump responded via Twitter, saying if Romney "spent the same energy fighting Barack Obama as he does fighting Donald Trump, he could have won the race (maybe)!".
In 2012 Romney won a slightly greater percentage of the popular vote than Trump in 2016.
Huckabee, the father of White House Press Secretary Sarah Huckabee Sanders, wrote, "Know what makes me sick, Mitt? »