Rubio criticized over gun control, LGBT rights
Associates traveled to Havana to explore 'golf-related opportunities'
Christine Leinonen criticizes Marco Rubio over gun control
Victims' families, friends struggle to cope with tragedy
Rating falls again after he refuses to sponsor Equality Act
Nomination to face steep congressional opposition
Congress returned from summer recess on Tuesday
Florida Republican announced re-election bid after nightclub massacre
Christine Leinonen spoke at gun control rally in D.C.
Republican acknowledges Pulse nightclub victims, reaffirms marriage opposition