Peru’s president-in-waiting, Martin Vizcarra, is set to take office with the daunting challenge of building ties with an opposition-controlled Congress that forced his predecessor to quit after 20 months in power.

Vizcarra, an engineer-turned-politician, will be sworn in Friday to replace Pedro Pablo Kuczynski, who quit amid a corruption scandal, and a day before he faced a second impeachment vote.

Under Vizcarra, Peru has a chance to turn the page on the continent-wide Carwash bribery scandal that brought down Kuczynski and implicated three other former Peruvian presidents. The biggest challenge may be smoothing tensions that eroded investor confidence and undercut growth prospects.

“Peru has always been a relatively noisy credit, politically speaking,” said Jaime Reusche, a senior credit officer at Moody’s Investors Service. “There are no guarantees that there’ll be a harmonious relationship with Congress, but there is now the possibility of moving past this confrontation.”

‘Constitutional Transition’

Kuczynski said in a national address Wednesday that resigning was best for the Andean nation and would end uncertainty.

“There will be an orderly constitutional transition,” he said on state television flanked by his cabinet. “I don’t want to be an obstacle for the nation finding the path of union and harmony it so badly needs and which was denied me.”

As first vice president, Vizcarra is in line to take power and is entitled to hold office until 2021 when the government’s mandate expires. Vizcarra, who turns 55 on Thursday, joined Kuczynski’s campaign as an adviser in 2015 after a four-year term as governor of the Moquegua region in south Peru. He quit as transportation minister in May under pressure from lawmakers amid a spat over an airport contract. He has been serving as Peru’s ambassador to Canada.

Vizcarra said via Twitter he’s returning to Peru to serve the country in accordance with the constitution.

“I’m indignant with the current situation, like the majority of Peruvians, but I’m convinced that together we will show once again that we can move forward,” he wrote.