Explanation:

- The sentence mentions an "ex-Minister in the running" for a political position.

- The idiom "in the running" often means actively participating or competing in an event.

- Option 1: Contesting the seat – This means that the ex-Minister is competing for the position, which fits the context.

- Option 2: Teaching yoga – This is unrelated to the political context given in the sentence.

- Option 3: Giving speeches – While related to politics, it doesn't fully capture the essence of "being in contention" implied by the idiom.

- Option 4: Jogging every day – This literally involves running but isn't connected to the idiom's meaning.