By Kurt Erickson St. Louis Post-Dispatch JEFFERSON CITY — Democrats raised questions Monday about the cost of sending Missouri soldiers and police to Texas as part of an election-year effort by Republicans to draw attention to immigration problems on the nation’s southern border. Democratic members of the House Budget Committee said they were unclear why Gov. Mike Parson is asking for $2.2 million to send 200 Missouri National Guard troops and 11 members of the Missouri Highway Patrol to the Lone Star State beginning next month. Although there is $4 million for emergency costs already available, Parson, a Republican, is…