Lobbyist Matt Mika was shot multiple times and critically injured and remained hospitalized.
According to the officials who spoke with NBC News, the list included Rep. Trent Franks of Arizona, Rep. Jeff Duncan of South Carolina, Rep. Mo Brooks of Alabama, and one or two other names that officials would not reveal.
Scalise was shot in the hip and several others were wounded when Hodgkinson sprayed dozens of bullets onto a baseball field at Eugene Simpson Stadium Park in Alexandria, Va. Both Duncan and Brooks were initially at the field in Alexandria where the shooting took place, but Duncan cut out of practice early so he wasn't there at the time of the shooting. Franks added that "it's clear that (the shooting) was premeditated", but he declined to confirm the existence of a possible list, citing the ongoing investigation.
Also suffering relatively minor injuries were two Capitol Police officers, David Bailey and Crystal Griner, and House GOP aide Zack Barth.More news: Gianforte to enter plea in assault case
But for all his complaining about Republicans, he had little to do with Democratic politics here. Duncan had told Hodgkinson that Republicans were playing before leaving.
Investigators said they have not found any evidence indicating Hodgkinson planned the attack.
Scalise can hope to make an "excellent recovery", his trauma surgeon said Friday, even though the lawmaker arrived at the hospital Wednesday at imminent risk of death.
"We have controlled the internal bleeding and his vital signs have stabilized", Sava said.More news: McIlroy hits back after accused of being 'bored' by Elkington
In addition to the note the Federal Bureau of Investigation also seized a cell phone, computer, and a camera all housed in Hodgkinson's vehicle.
The gunman was believed to have harbored unfavorable views toward Republicans at large, including President Donald Trump.
Bailey, in crutches, appeared at Thursday's congressional charity baseball game to throw out the ceremonial first pitch.More news: Brooke Henderson stumbles late, keeps Meijer LPGA lead