Worth pointing out that a national poll is pointless as we do not have national elections.

Show me the polling from these states:

Iowa - 1/15 Caucus - 8/24 - Trump +20
New Hampshire - 1/22 Primary - 8/15-17 - Trump +20
Nevada - 2/6 Primary, 2/8 Caucus 6/26-28 - Trump +30
South Carolina - 2/24 Primary 8/17-19 - Trump +34
Michigan - 2/27 Primary 8/1-2 - Trump +48
Idaho - 3/2 Caucus (no polls available)
D.C. - 3/3 Primary (no polls available)
(Trump D.C. Trial begins) - 3/4
Super Tuesday - 3/5 - Alabama, Alaska, Arkansas, California, Colorado, Maine, Masachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, Texas, Utah, Vermont, Virginia.
Mini-Tuesday - 3/12 - Georgia, Mississipi, Washington