Paris (CNN)A deadly attack on a police bus in the heart of Paris has dramatically changed the course of the French presidential election campaign.

Nov. 2015: Coordinated attacks in Paris kill 130 people

Jan. 2016: Knife-wielding man shot dead on anniversary of Charlie Hebdo attacks

Jul. 2016: Bastille Day truck attack in Nice leaves 84 dead

Jul. 2016: Catholic priest killed after ISIS sympathizers storm church

Sep. 2016: Plot to attack Notre Dame Cathedral in Paris foiled

Feb. 2017: Police thwart ‘imminent attack on French soil’

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CNN’s Saskya Vandoorne reported from Paris, while Laura Smith-Spark wrote from London and Ray Sanchez from New York. CNN’s Paul Cruickshank, Jim Bittermann, James Griffiths, Ralph Ellis, Marilia Brocchetto, Pierre-Elliot Buet, Lindsay Isaac, Julia Jones, Hamdi Alkhshali, Vasco Cotovio and Deborah Bloom contributed to this report.

Source:   CNN