President Donald Trump on Tuesday sent out a personal "thank you" to right-leaning pollster Rasmussen Reports, whose daily tracking poll gave him a 50 percent approval rating on Monday -- despite the fact that every other pollster in the United States has pegged his approval significantly lower.

"Thank you to Rasmussen for the honest polling," the president wrote. "Just hit 50%, which is higher than Cheatin’ Obama at the same time in his Administration."

However, Rasmussen is the only pollster to regularly give Trump such high ratings. According to Nate Silver's FiveThirtyEight polling aggregation, Trump's average approval rating sits at just 40.6 percent, while his disapproval rating sits at 53.5 percent.

In fact, the last four non-Rasmussen polls included in FiveThirtyEight's average have Trump's approval ranging from 38 percent at the low end to 44 percent at the high end.

Additionally, Silver's website shows that Trump's 40.6 percent average approval rating is the lowest of any president at this point in his presidency in recent history. For comparison, the only president at this point in his first term who had comparably low approval ratings was President Harry Truman, who was averaging a 43 percent approval rating on the 436th day of his presidency's first term.