Senator Doug Jones (D-AL) continues to lose popularity as 2020 draws nearer.

Morning Consult on Thursday released its polling numbers for the second quarter of 2019, showing Jones’ net approval rating 20 points lower than the first quarter of 2018 when he entered the U.S. Senate.

The polling was conducted from April 1 through June 30 and measured registered voters. The results showed 39% of respondents approved of Jones’ job performance, while 37% disapproved and 24% were undecided. The margin of error was 1%.

In contrast, Senator Richard Shelby’s (R-AL) net approval rating is 15 points higher than Jones’, with 46% approving and only 29% disapproving of Alabama’s venerable senior senator.

Jones’ net approval rating has dropped three points since the beginning of the year.

Another poll conducted in April went deeper than Morning Consult’s approval rating surveys, showing that Jones faces nearly insurmountable demographic barriers to reelection.

Sean Ross is a staff writer for Yellowhammer News. You can follow him on Twitter @sean_yhn.