There could be hundred other personal reasons for him to take a potshot at Tamils.
From the economist.com
His latest Twitter dig took a potshot at Bilson's new $280 degustation menu.
From the brimbankweekly.com.au
A gratuitous potshot at the guy who's trying to stay afloat in this economy.
From the foxbusiness.com
It is easy for people who have no knowledge of the man to take a potshot.
From the guardian.co.uk
At Nablus, they potshot at po lice from barricades and upstairs win dows.
From the time.com
At this point, Schrag proceeds to potshot all the easy targets in sight.
From the time.com
We were convoying outside Baghdad when someone decided to take a potshot at a moving vehicle.
From the online.wsj.com
Two influential economists take a potshot at financial policymakers.
From the economist.com
Buaben eventually takes a potshot, the ball flying miles from the target, but at what speed.
From the guardian.co.uk
More examples
A shot taken at an easy or casual target (as by a pothunter)
Criticism aimed at an easy target and made without careful consideration; "reporters took potshots at the mayor"
Potshot was a J-ska music group from Japan. They released their records on their own label, TV Freak, in Japan. Their first five albums were also re-released by Asian Man Records, an American label well known for signing Asian punk-pop bands. ...
Potshot is the 28th Spenser novel by Robert B. Parker. The story follows the fictional Boston-based PI Spenser as he tries to identify the killer of a widow's husband. As is often the case, Spenser's probing uncovers much more than just a simpleu2014or singleu2014murder.