Nicola Sturgeon has stood down as deputy leader of the SNP as she bids to become the new leader of the party.
The press conference is taking place at Glasgow Royal Concert Hall.
This summer's Commonwealth Games could be the "best ever", according to a final progress report on the build-up to the event.
The assembly of a 15,000-strong volunteer force, the progress of the Queen's Baton Relay and a long list of sponsors were praised by the Commonwealth Games Federation (CGF) in its last review of planning for the Games.
Organisers, police and Government ministers met with the CGF in Glasgow this week to outline final preparations.
This summer all eyes will be on Scotland as Glasgow hosts the Commonwealth Games.
Today, some of the thousands of volunteers who will help run the games began their training - and got a first look at what they will be wearing.
Among them are many from Cumbria and Southern Scotland.
Hannah McNulty spent the day in Glasgow.
Volunteers are given a short re-enactment of the history of the Commonwealth Games.
Glasgow 2014 is going to be the 20th Games.
Volunteers and staff attending the training session are told:
Thousands of staff and volunteers are beginning training for the 2014 Commonwealth Games in Glasgow.
15,000 'clyde-siders' including many from Cumbria and Southern Scotland are volunteering at the Games.
The first step of their training begins over this weekend at one of Scotland's biggest mass orientation events and they will also get a first glimpse of their uniforms at the Emirates Arena.
Virgin Trains have announced that they are cutting the prices of their Carlisle to Glasgow route over the Christmas period.
An off-peak return fair will now cost £16, a 30% discount off the price of a standard off-peak day return to the Scottish city.
First class off-peak tickets will now be £36.
The 'shopper' tickets are available at train stations after 9am from 9 December to 12 January.
People living in the Scottish Borders are being asked to cheer on England in next year's Commonwealth Games in Glasgow.
It is part of a campaign to ensure a warm welcome to the visiting nations. Tickets for the games are now on sale.
Kathryn Samson reports:
People in the Scottish Borders are being asked to support England during the 2014 Commonwealth Games in Glasgow.
The 'Support a 2nd Team' has been developed as part of a wider Games Legacy, aimed at encouraging local authorities in Scotland to cheer on other Commonwealth countries.
The initiative will involve a number of events, led by sportscotland, which will provide an opportunity to create partnerships with nations and territories participating in the Games.
Scottish Borders has been linked with England (Europe) and Tonga (Oceania), and Dumfries and Galloway has been asked to support Grenada (Caribbean) and Northern Ireland (Europe).