Sen. Bernie Sanders (D-VT) has moved into the lead in Iowa over former Secretary of State Hillary Clinton, according to polling conducted by the American Research Group released Monday.

The polls showed Sanders’ support at 47 percent to Clinton’s 44 percent. Sanders held the same 47-44 lead over Clinton in a separate ARG poll of New Hampshire also released Monday.

In Iowa, where Clinton has mostly led in the polls, this is the first recent poll to place Sanders in the lead. This is the first ARG poll of the Iowa Democratic primary this cycle. Most polls taken throughout the fall have put him ahead in New Hampshire by a narrow margin. The last ARG poll of New Hampshire, Dec. 23, showed Clinton leading Sanders 46-43.

Nationwide polls give Clinton a comfortable lead, though closer now than in the summer when Sanders first surged. In Iowa and New Hampshire, however, Sanders has done better than nationally.

The Iowa poll surveyed 400 likely Democratic caucus-goers from January 6-10, with a margin of error of +/- 5%. Both were conducted using live telephone interviews. The New Hampshire ARG poll surveyed 600 likely Democratic voters from January 7-10, with a martin of error of +/- 4%.