1. The election is over a month away.
2. Rider has run for several other offices since 1988 and never won any of them.
3. Rider, the Libertarian in the race, is one of 11 candidates.
4. Even though Rider may be "near the front" of the pack of 11 candidates, with that many candidates, Rider only needs the support of around 20% of the voters to be considered a front runner at this point. If no candidate receives 50% of the votes in the general election, there will be a runoff between the two candidates with the most votes.
5. Traditionally, many voters don't start paying close attention to candidates or elections until the last week or two before an election. At this point, many voters in San Diego probably don't know who Rider is or where he stands on the issues important to them.
6. There's not much that a mayor can do about illegal immigration anyway.