Former Vice President Joe Biden saw his standing with Democrats improve last week as he entered the 2020 race for president.

The latest weekly national poll, conducted April 22-28 among 15,475 likely Democratic primary voters with a margin of error of 1 percentage point, found 36 percent said the Delawarean was their first choice for president, up from 30 percent the week before. The increase was enough to more than double his advantage over Sen. Bernie Sanders (I-Vt.), from 6 points to 14 points.

The short-term surge in support for Biden is similar to that experienced by Sanders and Sen. Kamala Harris (D-Calif.) amid their campaign launches earlier this year.