Stephen Harper’s haters came out in full force on Twitter on Monday, using the hashtag #PMHarperMustResign to voice their anger over the prime minister’s leadership and eventually causing the term to trend.

The 140-character comments pointed to a number of recent topics that have drawn negative attention to Harper and the Tory government, including the recent controversy involving Harper’s now-former chief of staff Nigel Wright giving Sen. Mike Duffy a $90,000 cheque to repay housing expenses. Other sources of anger included cuts to science research, rebranding the government to include Harper’s name, and Harper welcoming Chinese pandas to Canada while a First Nations group marched to Parliament.

An online statement called for the Twitter users to use the hashtag on Victoria Day and provided a list of tweets that could be circulated.

“Twitter is a powerful social media platform and focused action has and will have effect,” it said.

Other Canadian politicians caught flak via the online action as well, including Toronto Mayor Rob Ford, who was accused of smoking crack cocaine on video last week -- an allegation he denied.

Predictably, as some used the hashtag to express more general complaints about Harper, several also disregarded the social media trend.

See why some Twitter users want Harper to step down.

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  • MORE: MEMORABLE STEPHEN HARPER PHOTOS

  • Can I Keep Them?

    Prime Minister Stephen Harper plays with foster kittens at 24 Sussex. May 1, 2010. Source: <a href="http://www.pm.gc.ca/eng/media_gallery.asp?media_category_id=900&media_category_typ_id=6&media_id=5512" target="_blank">Pm.gc.ca</a>

  • Incoming!

    Conservative Leader Stephen Harper throws a small snowball at photographers after talking with reporters at a campaign stop in Guelph, Ontario Saturday, Jan. 21, 2006.

  • Thank God You're Not Wearing Overalls

    Prime Minister Stephen Harper gives Taylor Swift the book "Maple Leaf Forever" before her concert at Scotiabank Place in Ottawa. May 20, 2010. Source: <a href="http://www.pm.gc.ca/eng/media_gallery.asp?media_category_id=900&media_category_typ_id=6&media_id=5512" target="_blank">Pm.gc.ca</a>

  • Wedding Crasher

    Stephen Harper <a href="http://www.huffingtonpost.ca/2012/10/23/harper-wedding-photos-ottawa_n_2006374.html" target="_blank">surprises an Ottawa couple on their wedding day</a> in 2012.

  • Yep, Definitely A Cat Person

    Laureen Harper laughs as she holds a husky dog with Canadian Prime Minister Stephen Harper as they tour Caribou Crossing, Yukon, south of Whitehorse Monday August 20, 2012.

  • Beer Me!

    Prime Minister Stephen Harper gets behind the bar at the Victoria pub in Montreal Friday, March 16, 2012 where he stopped in to meet some supporters and have a drink for St. Patricks Day.

  • You Eat Half, And I'll Eat Half

    Conservative leader Stephen Harper and Laureen Harper stand next to a tray of hot cross buns at a bakery in Mississauga, on April 23, 2011.

  • Harper Road

    Stephen Harper, his children Ben and Rachel, and wife Laureen cross Abbey Road in 2009. Source: <a href="http://on.fb.me/12OfGXN" target="_blank">Facebook</a>

  • Bonjour, Bonhomme

    Prime Minister Stephen Harper hams it up with Bonhomme Carnaval in the Prime Minister's Centre Block Office. November 25, 2010. Source: <a href="http://www.pm.gc.ca/eng/media_gallery.asp?media_category_id=1238&media_category_typ_id=6#cont" target="_blank">Pm.gc.ca</a>

  • Trendsetter

    Canadian Prime Minister Stephen Harper, far left, watches a third round match between Agnieszka Radwanska, of Poland, and Serbia's Jelena Jankovic with his children Rachel, center, and Benjamin, right, at the 2012 US Open tennis tournament, Saturday, Sept. 1, 2012, in New York.

  • Easy Rider

    Prime Minister Stephen Harper waves after going for an ATV ride as he visits a farm for a campaign event in Wainfleet Ont., on Monday, April 4, 2011.

  • Psst! I Like Your Hat

    Catherine, Duchess of Cambridge, speaks with Canadian Prime Minister Stephen Harper during Canada Day celebrations on Parliament Hill in Ottawa on July 1, 2011.

  • Nom Nom Nom

    Prime Minister Stephen Harper eats maple taffy as he visits a sugar shack in Norbertville, Quebec on Tuesday, April 5, 2011.

  • Whoops, How Did This Get In Here...

    Part of a painting of Prime Minister Stephen Harper fully nude, by Kingston artist Maggie Sutherland, is shown at the Central Kingston public library in Kingston, Ont. on May 18, 2012.

  • Giggle Fit!

    Prime Minister Stephen Harper and his son Ben watch a bloopers show while attending the Calgary Flames NHL hockey game against the Edmonton Oilers in Calgary, Saturday, April 11, 2009.

  • In The Key Of C Major

    Prime Minister Stephen Harper practices a few chords after arriving at home from work. February 19, 2011. Source: <a href="http://www.pm.gc.ca/eng/media_gallery.asp?media_category_id=1457&media_category_typ_id=6#cont" target="_blank">Pm.gc.ca</a>

  • Love You, Mom

    Conservative leader Stephen Harper gets a hug from his mother Margaret during a visit to his campaign office in Calgary, Saturday May 29, 2004.

  • Stephen Harper and wife Laureen in 2011. Source: <a href="http://www.flickr.com/photos/pmharper/8472663517/in/photostream" target="_blank">Flickr</a>

  • We Can't All Grow A Pirate 'Stache Like Trudeau

    Prime Minister Stephen Harper holds up a moustache scarf to kick off the start of ‘Movember’, November 1, 2012 Source: <a href="http://www.flickr.com/photos/pmharper/8146161138/in/photostream" target="_blank">Flickr</a>

  • Cuddle Time!

    Stephen Harper with wife Laureen and their chinchilla Charlie. Source: <a href="http://www.flickr.com/photos/pmharper/8425819048/in/photostream" target="_blank">Flickr</a>

  • The Sweet Side Of Politics

    Senior Legislative Assistant, Katherine Locke, left, and Government House Leader Special Assistant, Zoe Lawson, show off their House of Commons gingerbread house to Prime Minister Stephen Harper in his office on Dec. 16, 2010. The gingerbread house was filled with rows of gummi bears as members of Parliament. Source: <a href="http://www.pm.gc.ca/eng/media_gallery.asp?media_category_id=1355&media_category_typ_id=6#cont" target="_blank">Pm.gc.ca</a>

  • Beach Boy

    Prime Minister Stephen Harper waves to tourists as he walks on the beach after the closing of the VI Summit of the Americas on April 15, 2012 in Cartagena de Indias, Colombia.

  • Game Face

    Prime Minister Stephen Harper plays a game of table tennis with Team Canada's Mo Zhang at Canada House in London on Tuesday, June 5, 2012.

  • Whaddya Mean It Doesn't Fit?

    Prime Minister Stephen Harper tries on an old hockey helmet at he tours the Yukon's Hockey History exhibit at the McBride Museum in Whitehorse, Yukon on Thursday, August 25, 2011.

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