Threats of violence are common to the "resistance." Here is a list:

Thanks to The Daily Caller for the following: 

Violent anti-Trump rhetoric, harassment of White House officials and attacks on the president’s supporters have seemingly become the new norm since Trump took office.
In the latest incident on Sunday, Democratic Rep. Alcee Hastings joked that it would be a “catastrophe” if anyone saved President Trump from drowning. (RELATED: Dem Rep. Alcee Hastings Jokes About Trump Drowning In The Potomac River) 
The Daily Caller compiled a list of nearly two-dozen incidents alone since January in which Democratic officials made violent jokes about the president and his supporters, Trump officials were harassed in public and other disturbing incidents that lowered the state of discourse.
Here’s the full list:
JANUARY: 
1/02: Police discover FB live of people beating disabled man while shouting “Fuck Trump!”
1/12: CNN guest Rick Wilson threatens to “gut” a Trump supporter “like a fish”
MARCH: 
3/15: Capitol police arrest Democratic operative for assaulting female Interior Department communications official
APRIL
4/28: Comedienne Michelle Wolf jokes about Kellyanne Conway getting “stuck under a tree”
MAY: 

5/03: CNN’s April Ryan jokes about getting into a “street fight” with Sarah Sanders
5/08: Woman charged with felony reckless endangerment for trying to run Rep. David Kustoff (R-Tenn.) and an aide off the road
5/11: MSNBC’s Nicolle Wallace suggests “wringing” Sarah Sanders’ neck
JUNE: 
6/18: Stephen Miller called a “fascist” while eating at Mexican restaurant
6/20: Kirstjen Nielsen driven out of Mexican restaurant
6/22: Red Hen restaurant owner refuses to serve Sarah Sanders
6/23: Rep. Maxine Waters calls on supporters to harass Trump officials in public, says “God is on [their] side”
6/23: Florida AG Pam Bondi confronted, spit on at movie theater
6/25: DHS warns employees of sharp increase in threats after official finds decapitated animal on front porch
6/29: Feds arrest man threatening to kill Ajit Pai’s children
JULY:
7/6: Man arrested for making “terroristic threats” against Rep. Zeldin staffer, Trump supporters
7/16: Rep. Cohen tells “military folks” to stop Trump
7/25: Sen. Cory Booker tells people to “get up in the face of some congresspeople”
AUGUST: 
8/1: CNN’s Symone Sanders says Trump officials getting harassed is the “name of the game”
8/2: Democrat drives to man’s home and shoots him over political disagreement on Facebook
8/9: Newly uncovered audio reveals Dem Rep. Steve Cohen joking about GOP Rep. Marsha Blackburn jumping off a bridge
8/12: Antifa protesters say they would like to “murder” Trump — “do him like Gaddafi”
8/13: Pearl Jam depicts dead Trump on concert poster for fundraiser for Dem Senate candidate Jon Tester
8/19:  Rep. Hastings (D-Fla.): It would be a “catastrophe” if someone saved Trump from drowning