Washington (CNN)Bolstered by the strong economy and quickly shifting numbers on tax reform, President Donald Trump’s approval rating hit 40% in a new Quinnipiac poll on Wednesday, his best score in this survey in seven months.

A slim majority of voters, 51%, say they approve of how Trump is handling the economy, his highest mark on this question since his inauguration. Seven in 10 American voters, 70%, say the US economy is excellent or good — the best mark on this question since 2001. Three in four, 75%, have positive views of their own personal financial situations.

This marks at least the fifth recent national survey to show Trump’s approval rating climbing over the last two months. (The most recent Gallup and CNN polls also show Trump at 40%, while recent polling from Fox News and Monmouth has also shown Trump’s scores on the rise.)

And for the first time, voters say Trump, rather than former President Barack Obama, is primarily responsible for the state of the economy, 48% for Trump vs. 41% for Obama. This is a reversal from Obama’s 49-40% advantage last month and a stark contrast to Obama’s 67-19% spread last March.