President Trump touted the success of his administration and a new poll showing his approval rating over 50 percent in a series of tweets Sunday.

"The MAKE AMERICA GREAT AGAIN agenda is doing very well despite the distraction of the Witch Hunt. Many new jobs, high business enthusiasm, massive regulation cuts, 36 new legislative bills signed, great new S.C.Justice, and Infrastructure, Healthcare and Tax Cuts in works!" Trump tweeted.

Trump has begun referring to the investigation into whether he obstructed justice by firing former FBI Director James Comey as a "witch hunt." Trump fired Comey in May, and Comey believes it was due to the FBI's investigation into Russian interference in the election and possible collusion between the Trump campaign and the Kremlin.

Trump has called reports that Russia interfered in the election a hoax invented by Democrats to excuse losing the election. However, the American intelligence community believes Russia ran an influence campaign on the election in order to harm Hillary Clinton.

There has been no evidence that the Trump campaign actually colluded with the Russians.

Trump also said his approval rating is rising in the Rasmussen Poll, a polling outfit that has generally been much more favorable to him than other pollsters.

The latest edition of the pollster's daily tracking poll showed 50 percent of Americans approve of the job Trump's doing. That's generally higher than the percentage other pollsters report when they ask the same question; most pollsters have Trump's approval rating in the mid-to-upper 30 percent range.

"The new Rasmussen Poll, one of the most accurate in the 2016 Election, just out with a Trump 50% Approval Rating. That's higher than O's #'s!" he tweeted, referring to former President Obama.