As governor , Connally promoted HemisFair ' 68 , the world 's fair held in San Antonio , he believed would net the state an additional $ 12 million in direct taxes . A permanent Institute of Texan Cultures museum was an outgrowth of the fair . It was designed to be " a dramatic showcase , not only to Texans , but to all the world , of the host of diverse peoples from many lands whose blood and dreams built our state . " There was some talk of Connally being selected as Hubert Humphrey 's running mate in 1968 , but the liberal Senator Edmund Muskie of Maine was instead chosen . Connally endorsed Humphrey and greeted the nominee at the Fort Worth airport and even reconciled for a month with intraparty rival Ralph Yarborough . Ashman , however , claims that Connally was " privately helping Nixon , recruiting a number of influential Texans , members of both parties , to work for the Republican candidate . " Ben Barnes recounts a story that Connally shouted at Hubert Humphrey in a private meeting at the 1968 Democratic National Convention in Chicago and accused the vice president of being disloyal to President Johnson by trying to soft-pedal Johnson 's position regarding Vietnam . Barnes said that the " tongue-lashing " Connally gave Humphrey was " an epic ... He orally spanked that man as hard as I 've ever seen anyone chastised . He either strengthened Hubert 's backbone , or gave him some , or scared him half to death . " Connally was succeeded as governor by Lieutenant Governor Preston Smith , a theater owner from Lubbock , who twice defeated the Republican attorney Paul Eggers in 1968 and 1970 . Eggers , a friend and later associate of Republican Senator John G. Tower , served as general counsel in the Treasury Department from 1969 – 70 , before Connally joined the Nixon Cabinet
1968 Democratic National Convention
1968 Democratic National Convention
John Connally