Sen. Mark PryorMark Lunsford PryorMedicaid rollback looms for GOP senators in 2020 Cotton pitches anti-Democrat message to SC delegation Ex-Sen. Kay Hagan joins lobby firm MORE (D-Ark.) has a 3-percentage-point lead over Rep. Tom CottonThomas (Tom) Bryant CottonSenate confirms Haspel to head CIA Democrats urge colleagues to oppose prison reform bill Trump-backed prison reformsĀ face major obstacles in Senate MORE (R-Ark.) in a new poll released by the Democratic Senatorial Campaign Committee.

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Pryor leads Cotton by 48 percent to 45 percent in the poll.

The numbers are the latest sign that Pryor hasn't withered under a deluge of attacks in the conservative state, and that the race is likely to remain tight.

Partisan polls should always be taken with a grain of salt. But Pryor has led in two other recent polls: A Talk Business-Hendrix College poll out last week found him with the same 3-percentage-point lead, and one from Opinion Research Associates found him leading by 10 points.

The live-caller poll of 600 likely voters was conducted by the Democratic firm Anzalone Liszt Grove Research from March 27 through April 2. It has a margin of error of plus or minus 4 percentage points.