How many times did Public Policy Polling under Republican: Jack Hoogendyk?
CREATE TABLE "opinion_polling_for_the_united_states_se" (
  "poll_source" text,
  "dates_administered" text,
  "democrat_carl_levin" text,
  "republican_jack_hoogendyk" text,
  "lead_margin" real
);
SELECT COUNT("republican_jack_hoogendyk") FROM "opinion_polling_for_the_united_states_se" WHERE "poll_source"='Public Policy Polling';