Pre-campaign surveys show ex-senator Ferdinand “Bongbong” Marcos Jr. leading his rivals for the presidency by the proverbial mile three months into the May 9 national elections. Strategists say that Marcos should not disturb the political tailwind carrying his family back to the Palace that they were forced to abandon in panic at the height of the People Power Revolt in 1986. So when the son and namesake of the deposed former dictator was asked to join four of his major rivals to what was billed as the Jessica Soho Presidential Interviews of GMA Network last Saturday, he turned down the invita…