Poll: Sanders most popular senator in the US
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Sen. Bernie SandersBernie SandersTrump, Clinton campaign aides launch their own bids Overnight Regulation: Biz groups push to scrap rule on reporting employee pay | GOP skeptical of Trump paid leave plan GOP skeptical of Trump plan for paid parental leave MORE (I-Vt.) has the highest approval rating of any U.S. senator in a new poll.

The Morning Consult poll showed a 75 percent approval rating for the Vermont senator. Sanders, who lost the Democratic presidential nomination to Hillary ClintonHillary Rodham ClintonTrump, Clinton campaign aides launch their own bids Hannity: I won't discuss Seth Rich story for now "out of respect for the family" Clinton slams Trump's budget: 'An unimaginable level of cruelty' MORE last year, has remained popular. He is now a vocal critic of President Trump.

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Fellow Vermont Sen. Patrick LeahyPatrick LeahySessions postpones Senate testimony on DOJ funding GOP talks of narrowing ‘blue-slip’ rule for judges GOP bill would create mandatory minimums for crimes against police MORE (D) came in second on Morning Consult's rankings of popular senators at 70 percent, and John BarrassoJohn BarrassoWhite House looks to speed infrastructure pace Pressure is on for administration to release infrastructure plan Trump to nominate three to nuclear commission MORE (R-Wyo.) was third at 69 percent.

Pollsters found Senate Majority Leader Mitch McConnellMitch McConnellSenate feels pressure for summer healthcare vote Republicans give Trump's budget the cold shoulder Senate GOP focused on killing Medicaid expansion MORE (R-Ky.) is the least popular senator, with a 47 percent disapproval rating. 

Sens. John McCainJohn McCainManchester attack will change focus of Trump’s NATO meeting Republicans give Trump's budget the cold shoulder Overnight Defense: Trump budget gets thumbs down from hawks | UK raises threat level after Manchester attack | Paul to force vote on 0B Saudi arms deal MORE (R-Ariz.) at 43 percent and Lindsey GrahamLindsey GrahamManchester attack will change focus of Trump’s NATO meeting Dem rep: If you believe in math, you can't believe in Trump's budget Overnight Finance: Inside Trump's first budget | 66 programs on the chopping block | Hearing highlights border tax divide | Labor to implement investment adviser rule MORE (R-S.C.) at 40 percent were second and third on the least-popular list.

Morning Consult surveyed more than 85,000 registered voters in each state between January and March.