Complex sentence: When Graydon Creed was running for President (with a heavy anti mutant campaign) Bobby was chosen to infiltrate in the campaign, his father stand out in a crowd and spoke in favor of the mutants, this came as a surprise to Bobby.
Split into simpler sentences: When Graydon Creed was running for President (with a heavy anti mutant campaign), Bobby was chosen to infiltrate in the campaign. His father stand out in a crowd and spoke in favor of the mutants, which came as a surprise to Bobby.