The universal credibility problem with polling is that wordsmithing and mathematics don't mix, and never will.
( ( ( The ( universal ( credibility problem ) ) ) ( with polling ) ) ( ( is ( that ( ( ( wordsmithing and ) mathematics ) ( ( ( ( ( ( do n't ) mix ) , ) and ) never ) will ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ universal) (NN credibility) (NN problem)) (PP (IN with) (NP (NN polling)))) (VP (VBZ is) (SBAR (IN that) (S (NP (NN wordsmithing) (CC and) (NNS mathematics)) (VP (VP (VBP do) (RB n't) (VP (VB mix))) (, ,) (CC and) (ADVP (RB never)) (VP (MD will)))))) (. .)))
Wordsmithing and mathematics are not related enough to go together.
( ( ( Wordsmithing and ) mathematics ) ( ( ( are not ) ( ( related enough ) ( to ( go together ) ) ) ) . ) )
(ROOT (S (NP (NN Wordsmithing) (CC and) (NNS mathematics)) (VP (VBP are) (RB not) (ADJP (JJ related) (RB enough) (S (VP (TO to) (VP (VB go) (ADVP (RB together))))))) (. .)))