Sixty-seven percent of Americans support allowing gay members of the military to serve openly, according to a CNN survey released Wednesday.

This figure has dropped two points since February, the survey said. Meanwhile the segment of "no opinion" respondents has dropped one point — five percent to four percent — in that same period. 

Debate over the related "don't ask, don't tell" policy — the Clinton-era convention that prevents gays from serving openly — quieted this week after a defense authorization bill containing a repeal provision stalled in the Senate.

The House passed its version of the bill in May. The Senate version is expected to be reconsidered after the midterms.

The CNN poll was conducted Sept. 21 to 23 and has a margin of error of 3 percentage points.