Ms Davidson is the party's first overall leader for Scotland, following a shake-up of the party structure.

BBC: Leader Ruth Davidson admits she has a lot to prove

After a political shake-up in November, the Democratic Party of Albanians, led by a veteran power-broker, Arben Xhaferi, became the main partner of the governing party, a movement that traces its history to the Slav-nationalist struggles of a century ago but has since become tamer.

ECONOMIST: Macedonia

Presiding officers of the Scottish Parliament may in future be required to resign from their political party, under a possible shake-up of the rules.

BBC: Review of Holyrood presiding officer election rules

What it probably did was reinforce the perception in many Plaid members minds that the party establishment were concerned that a Leanne victory would really shake things up and had to be stopped.

BBC: How Leanne left others trailing