one explanation being given for the new added voters causing an area's population to be greater than the census states, is that people are kept on the voter rolls long after they move. In other words, it's just an accounting artifact.
Actually there may be some truth to this. TX once required annual registration, which had to be completely by Jan. 31 of every year. This kept the voter rolls automatically up-to-date. However, in the early 1970s, maybe 1971, SCOTUS ruled that such annual registration and prior to Jan. 31 was an undue burden on voters. TX then adopted permanent registration in 1975. Every two years new voter certificates are mailed out, and many are returned by the Postal Service. Presumably, those returned are dropped from the voter rolls.
Now some Republicans have also opposed having picture ID for voting on grounds that such a requirement might discourage high turnouts.
"Actually there may be some truth to this."
I also believe there is some truth to this, but the contention of the apologists is that because there is some truth to it, then it just logically follows that there exists NO voter fraud.
"Now some Republicans have also opposed having picture ID for voting on grounds that such a requirement might discourage high turnouts."
Sometimes republicans are their own worst enemies.