Currently, 36% of voters favor the attacks on Iran. That is largely unchanged since late March; in 19 of 22 surveys since March 25-26, approval has fallen between 33% and 39%. Two of the other 3 surveys went 1 point higher to 40%.
Meanwhile, 54% of voters oppose the attacks. The current numbers include 19% who Strongly Favor them and 35% who Strongly Oppose them.
Sixty-five percent (65%) of Republicans favor the attacks, while 79% of Democrats oppose them. The right features a common theme: Trump's base overwhelmingly favor the attacks, but just 45% of Traditional GOP voters agree.

Thirty-nine percent (39%) of voters approve of President Trump's handling of the situation in Iran, while 54% are opposed. Again, those numbers are largely consistent. Throughout the war, the attacks have always been slightly less popular than the overall handling of the situation.
While the divide on the right exists, Traditional GOP voters are slightly more likely to approve of Trump's handling of Iran than they are of the attacks on Iran specifically. Fifty-percent (50%) of Traditional GOP voters approve. However, the none of the additional support falls into the Strongly Approve category, suggesting Traditional GOP voters may be thinking of that question simply in relation to Joe Biden's approach.