ST. PAUL, Minn. – From the moment he stepped off his campaign plane, John McCain's arrival in the Twin Cities for the Republican National Convention was a family affair.

Greeting McCain on the tarmac at the Minneapolis-St. Paul airport were his wife, Cindy, and other members of his family. Also on hand were family members of Alaska Gov. Sarah Palin, the person he chose just last Friday to be his running mate.

Hugs and handshakes abounded, with two hugs between McCain and Palin's 17-year-old daughter, Bristol, and a handshake with her boyfriend, 18-year-old Levi Johnston. Palin and her husband, Todd, announced this week that Bristol is five months pregnant and that she will marry Johnston.

McCain also kissed Sarah Palin's 4-month-old son, Trig. The politically paired families then boarded a campaign bus and headed into town.

Convention delegates were set to nominate McCain for president Wednesday night, with a prime-time speech by Palin highlighting the evening's activities. McCain is scheduled to deliver an acceptance speech to delegates Thursday night at the Xcel Center in St. Paul.