Between the lines of Trump's approval ratings tweet
President Trump cited data from Rasmussen Reports' latest daily tracking poll in a Sunday tweet, claiming his support is "much higher" than President Obama's at the same point during his first term. He cited a nearly identical stat from the historically Republican-leaning poll almost exactly a year ago.
Between the lines: Rasmussen's most recent numbers indeed show that 50% of voters approve of Trump, but RealClearPolitics' polling average puts his approval rating at 42.5%. Their average approval rating for President Obama at this point in his term was 48%.