More than 60 percent of Americans think that President Donald Trump "has tried to impede or obstruct the investigation" into Russia’s meddling in the 2016 election, according to a new Associated Press/NORC poll out Thursday.

Thirty-seven percent or respondents answered that the president has not tried to interfere, while three percent either didn’t know or skipped the question.

Concern regarding the Russia probe among those polled has risen moderately since March, with those very concerned or extremely concerned rising from 44 percent to 48 percent, while those moderately concerned rising two points to 20 percent.

The number of Americans not concerned with the investigation also eroded, with 30 percent saying they are not very concerned or not at all concerned, compared to 36 percent in March.

A majority of Americans, 52 percent, also disapprove of the president’s firing of former FBI Director James Comey, who Trump dismissed in early May. However, twenty-four percent and 22 percent had no opinion or approved, respectively.

Conversely, more than half of those polled said that leaks concerning the Russia investigating were doing harm to American national security, while 42 percent said that the leaks were good for educating the public.

The demographic breakdown of the AP-NORC poll skewed slightly towards those who either leaned or identified as Democrats, while 22 percent said they identify as independent without leaning to one side or the other.

The poll was conducted between June 8 and June 11, with 1,068 completing the survey — 813 over the internet and 255 via telephone. Interviews were conducted in both English and Spanish.