Bernie Sanders has parted ways with one of his deputy field directors in Iowa, the campaign confirmed Saturday.

Kevin Lata joined the Vermont senator's 2020 team after working in several positions during his first run for the White House. Lata said he left the campaign a few months ago. He is now managing Margaret Good's congressional bid in Florida.

Lata's departure is the latest in a series of staff shakeups in the critical early states of Iowa and New Hampshire. Sanders' political director in Iowa and senior adviser in New Hampshire are also no longer with the campaign, and his former New Hampshire state director has been reassigned to Massachusetts.

Some of Sanders' allies have recently sounded the alarm, saying his campaign has been hampered by personality clashes and poor communication between state operations and national headquarters. Expectations are high for Sanders in the first-in-the-nation caucus and primary: In 2016, Sanders came within nearly a third of a percentage point of winning in Iowa, and defeated Hillary Clinton by 22 percentage points in New Hampshire.

Sanders' campaign did not immediately provide further details about the departure.

After Sanders lost in 2016, Lata worked for Hillary Clinton's presidential campaign.