Philippe Couillard

On March 17, 2013, Couillard became the leader of the Quebec Liberal Party, beating ex-cabinet ministers Raymond Bachand and Pierre Moreau. On December 9, 2013, he was elected MNA for the safe Liberal seat of Outremont after Bachand stood down from the seat in his favour.[8]

On March 5, 2014, amid weeks of speculation that the Parti Québécois would call a snap election, Lieutenant Governor Pierre Duchesne dropped the writs for a general election at the request of Premier Pauline Marois. Couillard opted to run in the riding of Roberval, where he now lives, handing Outremont to star candidate Hélène David.

When the election campaign began, polls showed a close race between the Parti Québécois and the Liberals. However, the PQ held a wide lead among francophone voters, giving the advantage in terms of seat distribution to the PQ. Couillard stated that his campaign would focus on "healthcare, education and jobs". He also accused Premier Pauline Marois of mismanaging Quebec's economy, saying that "Quebec is living beyond its means". He also clarified his opposition to the Quebec Charter of Values, describing it as "an unnecessary bill that succeeds only in dividing Quebecers".

The election campaign immediately centred on the issue of sovereignty with the high-profile entry of Quebec media baron Pierre Karl Péladeau into the race as a candidate for the Parti Québécois in the riding of St-Jerome. Over the course of the next couple of weeks, the polls began to break heavily in the favour of Couillard and the Liberals as the PQ began to bleed support to all 3 major opposition parties. Most analysts agreed that Couillard had a strong performance during the first televised leaders' debate. During the second televised leaders' debate with a week to go in the campaign, Couillard was on the defensive as he held a sizeable lead over the other party leaders in the polls. His second debate performance was not as strong as his first one, and he was criticized by both Pauline Marois and Francois Legault of the CAQ for suggesting that a factory worker in Quebec ought to be bilingual in the event that an Anglophone businessperson was to walk on the floor. While his comment was portrayed by his critics as proof that he was soft on the French language issue, his poll numbers continued to exceed those of his opponents.

On April 7, Couillard led the Quebec Liberals to a sweeping victory, winning 70 seats in the National Assembly and a return to government a mere 19 months after being ousted in one of their poorest election showings in the party's history.[9] The Liberals even managed to unseat Marois in her own riding. On election night, Couillard stressed the importance of creating a better business climate in Quebec and doing away with some of the divisive policies that had characterized Marois' tenure as Premier. He also pledged to work cooperatively with other provinces and the federal government and to reassert Quebec's place as a leader in the Canadian federation.

Returning the Liberal Party of Quebec back to a majority government, after an eighteen-month stint led by Pauline Marois and the Parti Quebecois, Couillard assumed office on April 23, 2014, naming 26 ministers to his cabinet.[10]

In October 2017, a Quebec ban on face covering made headlines. Couillard supported the law, saying "We are in a free and democratic society. You speak to me, I should see your face, and you should see mine. It's as simple as that."

Couillard's government was ousted after only one term by the Coalition Avenir Québec in the October 2018 provincial election. Couillard himself easily won reelection in Roberval.[11] However, he was the only Liberal elected from Saguenay, and one of only seven Liberals elected from outside Montreal and Laval. He resigned as party leader and MNA on October 4, 2018.