Adam Price has succeeded Leanne Wood to become the new leader of Plaid Cymru.
The AM for Carmarthen East and Dinefwr challenged the leader of six years alongside Rhun ap Iorwerth, AM for Ynys Môn.
The party's rules allow for a contest to be held every two years if members want it, but this is the first time it has happened since Leanne Wood became leader in 2012.
Ms Wood was eliminated in the first round after winning the fewest votes with 1,286.
Watch Owain Phillips' interview with Adam Price:
Adam Price was an MP for nearly a decade before quitting parliament to spend time in academia - studying at Harvard in the US before retuning to front line politics in the Senedd in 2016.
As an MP, he tried to get Tony Blair impeached over the Iraq war.
Adam and his partner recently adopted their first child. He told ITV News he would like to see income tax cut by 9p to boost the Welsh economy. He has also pledged to abolish council tax and proposed a new land value tax - an annual charge on those who own property which he said will raise £6bn.