AGAIN: Your speculation, not fact. It looks to me like it was an uneventful meeting, among days/weeks/months of many other more eventful meetings, and he simply didn't recall or feel there was anything to disclose, until the liberal media had a major hissy fit about it.
WHILE THAT SAME LIBERAL MEDIA ignored Hillary Clinton's FAR more blatant crimes, collusions with foreign governments, and blatantly treasonous acts.
Hannity on his program tonight, the entire program, knocked it out of the park detailing the "collusion" and treason of the Democrats, with the media ignoring the blatant collusion of the Hillary Clinton campaign with the EXACT SAME PEOPLE they make an unrelenting case of Trump Jr. even having an innocuous glancing meeting with!
These people from both Ukraine and Russia have lobbied causes for the Democrats, and the Ukrainian government had to try and make peace with president-elect Trump because of the BLATANT sharing of opposition research on Trump given to the Clinton campaign, in its efforts to prevent Trump's election!
Hannity also appropriately blasted Congress and Senate Republicans for not keeping their 2016 campaign promise to repeal Obamacare, saying they don't deserve to be re-elected if they don't follow through. And vote for the exact same bill they passed 2 years ago that Obama vetoed.
Liberals who bemoan discrimination, intolerance, restraint of Constitutional freedoms, and promotion of hatred toward various abberant minorities, have absolutely no problem with discriminating against, being intolerant of, restricting Constitutional freedoms of, and directing hate-filled scapegoat rhetoric against conservatives.
EXACTLY what they accuse Republicans/conservatives of doing, is EXACTLY what liberals/Democrats do themselves, to those who oppose their beliefs.