Yes and no. Yes they poll everyday but they don’t publish the results until a few weeks later in bunches like it shows in the graph.
Someone on Twitter claims to have brought the data up to date and Bush is #2??? Don’t think so.
A lot of polls you hear about are garbage.
Real Clear Politics shifts through all the polls, weeds out the garbage ones and only uses real scientifically based polls in it’s averages. But even then, outliers can happen.