Dave Chan/Getty Images Gerald Butts, former principal secretary to Justin Trudeau, testifies before the House of Commons justice committee on Mar. 6, 2019 in Ottawa.

OTTAWA — With three months to go now until the election, the Liberals are intensifying campaign efforts with Prime Minister Trudeau hitting party events to drum up support and by ensuring his long-time friend and former senior adviser is in the fold. A Liberal party official confirmed Sunday that Trudeau’s former principal secretary Gerald Butts is playing a key role in the party’s election campaign. Butts, a close long-time friend of Trudeau, resigned in February amid the SNC-Lavalin controversy, citing allegations from anonymous sources that he pressured former Justice Minister Jody Wilson-Raybould to assist the Quebec engineering giant to be considered for an agreement akin to a plea bargain. Butts issued a statement at the time saying he categorically denied the accusation that he or anyone else in his office pressured Wilson-Raybould, adding that they acted with integrity. Watch: Who is Gerald Butts? Story continues below.

“Any accusation that I or the staff put pressure on the Attorney General is simply not true,” he wrote. “But the fact is that this accusation exists. It cannot and should not take one moment away from the vital work the Prime Minister and his office is doing for all Canadians.” In response to news of Butts taking on a role in the campaign, Conservative Leader Andrew Scheer tweeted: “And just like that, the Trudeau team that brought Canadians the SNC Lavalin scandal is right back together.” NDP Leader Jagmeet Singh also told CTV News on Sunday that he believed the move was “disappointing.” Since the winter, the SNC-Lavalin affair has been connected to sliding support for the Liberals reflected in a number of public opinion polls. The Liberals insist, however, they’re hearing positive feedback during canvassing efforts and that they have more field volunteers on the ground than in any other election. The party’s pre-election pace is stepping up quickly, with it saying it hit more than 200 ridings last weekend as part of its outreach plan. LISTEN: Gerald Butts sits down for an exclusive interview with HuffPost Canada’s Althia Raj