Learn Finnish: Ehdokas kampanjoi enemmän kadulla kuin netissä. - The candidate campaigns more on the street than on the internet.

Yes! While enemmän ... kuin is a comparative structure rather than a strict coordinating conjunction, it functions in a very similar way. It acts as a set of paired words that balance two parallel alternatives in the sentence. Here, it balances the two locations: kadulla and netissä.

Both English translations use 'on' ('on the street', 'on the internet'). Why does Finnish use two different cases here, kadulla and netissä?

Finnish local cases do not always match English prepositions one-to-one. For open, flat surfaces like a street, Finnish uses the adessive case (-lla/-llä), giving us kadulla. However, for electronic media, networks, and publications (like the internet, TV, or a newspaper), Finnish treats them as enclosed spaces and uses the inessive case (-ssa/-ssä), resulting in netissä.

What is the infinitive of kampanjoi, and why doesn't its third-person form have a doubled final vowel?

The base form is kampanjoida (to campaign), which is a Type 2 verb. To make the stem, you remove the -da, leaving kampanjoi-. Normally, the third-person singular (he/she/it) doubles the final vowel of the stem. However, because kampanjoi- already ends in a diphthong (two different vowels, o and i), Finnish grammar forbids adding a third vowel. Therefore, the form stays exactly the same as the stem: kampanjoi.

Why does the word (street) become with a ?