1)
What is "ka'Es Machar"?
1.
Radak citing Targum Yonasan: It is the same time as now, tomorrow.
2)
What is the meaning of "Ra'isi Es Ami"?
1.
Radak citing Targum Yonasan: the affliction of My people is revealed in front of Me. 1
2.
Malbim: [You will anoint Sha'ul,] for I saw that My people want and need a king to conduct their affairs.
1
This is like "Ra'isi Es Oni Ami" (Shemos 3:7). (PF)
3)
What were Yisrael screaming about?
1.
Radak: Pelishtim fought with them from when Shmuel grew old and he could not rebuke them. Yisrael sinned, and Pelishtim ruled over them. Yisrael asked Shmuel for a king to save them.