They would need some kind of training to be an officer. Like almost all police in America they're state sanctioned armed thugs, though ice have even less training and are more racist.
That is a WSJ opinion piece, it is not a meaningful comparison of US lobbying spend separated by party. Political lobbying is an American problem and most assuredly not limited to democrats.
When that talks about "lawless behaviour", it shows citizens standing on public sidewalks speaking freely (not illegal), when it asserts that citizens of MN are "funded by shadowy networks" it offers no proof to that assertion, etc.