Vowel Movement

only four US President's names have ended in a Vowel.
(unless you count "sometimes Y" then McKinley/Kennedy makes 6 out 43)
all the others ended in "E".
(#5 Monroe, #13 Fillmore, # 14 Pierce, #30 Coolidge)

'bout time for one ending with an 'A', i'd say : )
but please, no more 'N's ... (16 of 43 is enough)