European Commission President Jean-Claude Juncker | Emmanuel Dunand/AFP via Getty Images Juncker says he’s lost track of Romanian prime ministers There have been 5 Romanian PM’s since Commission president took office, and he’s struggling to keep up.

There have been so many Romanian prime ministers of late that European Commission President Jean-Claude Juncker can't keep track of them.

"[Viorica Dăncilă] is the fifth Romanian prime minister I had the pleasure to host from the beginning of my mandate," Juncker said Wednesday during a joint press conference with the newest holder of the top job in Bucharest, who took office last month. "I would like this cycle be stopped and that she stays longer because I start to lose track of all those I’ve seen," he said.

Dăncilă is the third prime minister from the governing Social Democrats (PSD) since it won a parliamentary election in December 2016. Her two predecessors were sacked, with one of them pushed out after a no-confidence vote supported by his own party.

Before the 2016 election, Romania had a technocratic government for a year, led by former European agriculture commissioner Dacian Cioloș. He succeeded another PSD prime minister, Victor Ponta, who resigned in 2015 after a nightclub fire led to mass street protests.

The trip to Brussels was Dăncilă's first outside of Romania since taking on her new job. She faced questions from foreign journalists about the rule of law in Romania, after the country's Constitutional Court sent a justice system reform back to the parliament because it found some of the provisions unconstitutional.

"Sometimes we have the impression that certain Romanian political environments would like to take some liberties from the strict and severe application of the rule of law," Juncker said Wednesday.

Dăncilă, a former member of the European Parliament, assured Brussels that she believed in the rule of law and continuing the fight against corruption, but also stressed her support for the principle of innocent until proven guilty.

Questioned about one of her advisers, who has been convicted for money laundering, the prime minister said that was not the final sentence. "The presumption of innocence has to exist until a definitive sentence, there's a European directive about it," she said. "If there will be a final sentence, I can assure you that my attitude will completely change."