Not the least bit true......while Kennedy's service was legendary......
all presidents since, EXCEPT Clinton, Obama and Trump----have served.
Clinton , despite false claims , did not DODGE the draft. In college, he agreed to join the Reserve officer training program......but later changed his mind and entered the draft. But he was given a High draft number, and never drafted. No dodging, no deferments, simply never called.
Trump used college deferment exemptions, 4 times, and when he graduated, magically came up with a 4-F medical rating, ---his 5th and final deferment.
and Obama was 10 years old during Vietnam.
Johnson, Nixon, Ford , Carter, Reagan, Bush Sr. and Bush jr. ALL served.
Reagan served, but his eyesight prohibited him from being shipped overseas, so he stayed in California and made Training films for the AAF.
In later years, during his presidency.......he told harrowing tales of his "wartime" service.
It was clearly his SENILITY, that was "remembering" the FILMS he starred in as an ACTOR.
He never went overseas.
As a side note......Nixon, on the basis of TWO things, actually QUALIFIED for an exemption, but *turned it down* and insisted on serving. He was given mostly desk jockey duties....and actually asked for more challenging assignments.