The point wasn’t that ranged attacks or siege or cavalry weapons are more important than melee weapons, though depending on the battle or the century, that may well be true.
The point was that when it comes to melee, the weapons used by your infantry was never swords. Swords are prestige weapons, expensive and heavy, wielded by wealthy knights and nobility for ceremonial purposes, duels, or tournaments. The king cannot afford to equip a thousand infantry with swords (the way you see in movies like Braveheart or LotR), and even if he could, the infantrymen have neither the skill nor strength to wield them for an extended duration.
Swords weren’t the weapon of last resort. They just weren’t included in the loadout at all, of the soldiers engaging in melee combat. So what did they use? Spears. That’s probably why the OP says spears are king.
But take it with a grain of salt cause I don’t actually know anything about medieval warfare. It’s just a thing I heard.
Even if dems win a majority in the house, they may not have a majority of state delegations. the house vote is by state delegation.